Gas block installation tool

In this article, I'll compare my AR-15 assembly experiences before discovering these tools from Geissele and then compare them to my experiences with the Geissele tools in the same scenarios. This is a typical 1/16″ roll pin punch that would normally be used for installing the gas tube roll pin into a gas block. Notice how very skinny it is.

In this episode we talk about a vital piece to your AR15, the gas block. Mounting and having he gas block securely fastened to the barrel is a critical step...Be sure to UNLOAD first and then separate your upper and lower receivers. You'll need to remove the existing gas block to get the old barrel nut off and the new one on. Step one of changing your ...10000+ "gas block" printable 3D Models. Every Day new 3D Models from all over the World. ... Tags Free 3D file AR15 Gas Block Tool , , , , , , Download: free Website: Cults. add to list Tags Free 3D file Gas Block Dimple Jig , , , , Download: free Website: Thingiverse. add to list. ACR Gel Blaster Handguard and Gas Block ...When your gas block is aligned properly, use the screw included to hold the gas block in place. At this point you can use the marking pin to locate the hole or simply run a 1/8" drill bit through the center of the screw to make your dimple. Includes: 1- Set screw, 10-32, with center hole 1- Marking pin Instructions.dm slide: how to install acro fmrs dm slide: how to install holosun 509t fmrs dm slide: how to install leupold dpp fmrs dm slide: how to install trijicon rmr fmrs how to install a gas block how to install 4th…Another great addition to tool chest. Gas Block Genie is super easy to use. I have been advised there is some slight margin of error so if you have a way to ...The JP Enterprises .750 Adjustable Gas Block is an important part of the JP Enterprises recoil management system. These AR Gas Blocks from the experts at JP Enterprises contribute to a smoother shooting rifle since they help control bolt velocity.By having a qualified gunsmith install the JP Enterprises .750 Adjustable Gas Block, you can optimize the feel of your rifle by turning your bolt ...The Gas Block Genie quickly and easily allows you to perfectly align the AR-15 or AR-10 gas block hole with the gas port in your barrel every time. Squeeze the Genie slightly to install into the forward face of the gas block so that the hole in the Genie is centered on the gas block hole. It may be easier to remove the rearmost set screw to do ...

The Gas Block Genie is a must-have tool for easily assembling your AR platform rifle. Gas Block Genie allows you to install your gas block to the perfect depth and angle on the first shot! It's reusable, and comes with instructions! All you'll need is a very fine point marker or scribe. Pencil Barrel Gas Block Genie. Fits all .625" barrels.The Riflespeed GCS consists of a custom gas block with a rotating valve. Control knobs of various lengths accommodate the particular geometry of your build, barrel, and handguard. Short versions are for rifles wherein the gas block is near the front of the forearm. The longer sort give you access when the forearm telescopes out a bit.LocationHolland, MI. Posted October 13, 2011. This was amazingly easy. I put this on my Oracle 308. The muzzle break came off with a 3/4" open wrench and a couple light taps with a mallet. The set screws holding the stock block on and the pin came right out. The new JP went right on just as easy.Tools Needed: 5/32” Allen Wrench. Loc-tite® Thread Locker. Also required but not included: Throttle cable and housing. 3/8“ Wrench. 77/16” Wrench. 5/16” drill bit. 1/4-20 x …The AR-STONER™ A2 Front Sight Gas Block is ready for installation on your AR-15, LR-308 Rifle. Made of steel to strict military specifications, this A2 Gas Block has an excellent fit and functions reliably. The A2 Front Sight measures 2.25" high from the base of the gas line making it great for co-witnessing your rifle and the bayonet lug ...

If you plan on using an adjustable low pro gas block that wraps around your barrel instead of using set screws this gets easier. You'll need a #1 roll pin punch or a 1/16" punch to drive out/in your gas tube roll pin from the FSB into your new low pro gas block. You'll also need a punch big enough to drive out your FSB pins and a hammer big ...Introducing the AR-15 Gas Block/Tube Roll Pin Jig from Aim Sports! This handy set up makes assembling your gas block and gas tube a stress-free experience and is fully compatible with most low-profile gas blocks available on the market. Features: Wide base for stability. Lightweight yet durable aluminum construction.GPT (Gas tube Pin Tool) is a jig tailor made for installing and removing the gas tube roll pin on an AR15/M16 low profile gas block. Machined in 6061 aluminum and Type III hard coat anodized, GPT makes installing the gas tube pin on a low profile gas block painless. GPT is designed to be stable and surefooted, but it is no larger than it has to ...If you own a gas stove, ensuring the safety of your household should be a top priority. One effective way to enhance the safety of your kitchen is by installing a stove guard speci...Stand the roll pin on a hard surface and tap the tool onto the pin to seat it in the tool. When the hole in the gas block grabs the roll pin, the pin will collapse enough so the tool can be removed from the roll pin. Afterwards, all that is needed is a tap with a punch to seat the roll pin in the gas block. Share your email and get 10% off!Checking gas block alignment. The top of the block, as well as the tube, should be at 12 o'clock, matching the top of the upper. If things are not properly aligned, your gas system is going to run on empty and your gun will not cycle properly. 5. Screw The Gas Block In Place. The last step is to screw it in place.

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We Install and review the new 87 Industries pin block on a Colt AR15.This is a great, easy to install, low profile gas block for the AR-15 rifles.Help suppor...Gas fireplaces have become increasingly popular among homeowners, offering both warmth and aesthetic appeal. If you’re considering installing a gas fireplace in your home, it’s ess...Gas Tube Roll Pin. Insert AR 15 gas tube into gas holes on inner barrel retainer nut, outer receiver nut and upper receiver. Make sure the end with the three holes (these are for the gas tube roll pin and gas hole going into the barrel) is on the end where the gas block will be. Loosen set screws on the bottom of gas block so it will slide over ...GBF .750-GBF (Gas Block Forward Controls) is a 0.750 gas journal gas block done FCD way: meticulously designed and machined, with thoughtful features ... GPT (Gas tube Pin Tool) $35.00. In Stock. Select Options Add to Cart. Add to Wish List. Quick View. Rocksett. $9.95. In Stock. Select Options Add to Cart. Add to Wish List.If you're tired of struggling to install a gas block and ending up with crooked results, then this video is for you. In this walkthrough, we'll show you the ...

The Gas Block Genie quickly and easily allows you to perfectly align the AR-15 or AR-10 gas block hole with the gas port in your barrel every time. Squeeze the Genie slightly to install into the forward face of the gas block so that the hole in the Genie is centered on the gas block hole. It may be easier to remove the rearmost set screw to do ...HB Industries has announced the release of their new AR-15 Gas Block Alignment Tool, brand new for 2014. Scroll down to watch a video for a demonstration of this product.. The new AR-15 Gas Block Aligner Tool is designed to ensure optimum alignment between the end-user's AR15 barrel port and gas block. These precision modeled pins will fit any 3/4″ inner diameter gas block and barrel ...We would like to show you a description here but the site won't allow us.Introducing the AR-15 Gas Block/Tube Roll Pin Jig from Aim Sports! This handy set up makes assembling your gas block and gas tube a stress-free experience and is fully compatible with most low-profile gas blocks available on the market. Features: Wide base for stability. Lightweight yet durable aluminum construction.This video provides a demonstration of how to change a gas block on an AR-15 or M-16.INCLUDES: Bolt Catch Install Tool Kit, Trigger Guard Install Tool, (3) Starter Punches and (3) Driver Punches, Two Sided Hammer, and Custom Fit Storage Case ; STORAGE: Comes with a convenient plastic molded storage case ; GUARANTEED: This product is covered by a limited lifetime warranty provided by Wheeler.<p>Take full control of your custom build with the Wheeler Gas Block Taper Pin Removal Tool. Whether you have a vise or a ball pin hammer, the Support Block, paired with the starter and finishing punches makes removing A2 style gas blocks quick and easy. Built with durable tool steel. Works on A2 front sights, S&W single-taper pin gas blocks and …Today, Hank is going to show us how to swap out our front sight, post, and handguard for a low-profile gas block and free float rail on an AR-15. So these are the tools you need to swap out the front side. We've got an upper vice block, bench block, punch set. Parts List: AR-15 Low-profile gas block; Gas tube roll pin; Crush Washer25. Everyone asks where I find AR-15 stuff in stock or where I order from, so here you are: I install my Damage Industries gas tube into my Geissele gas block using Geissele’s gas block tools. The Geissele gas block tools are designed to make installing the small roll pin as easy as possible. Geissele Tools: Damage Ind. Gas Tube:<p>Take full control of your custom build with the Wheeler Gas Block Taper Pin Removal Tool. Whether you have a vise or a ball pin hammer, the Support Block, paired with the starter and finishing punches makes removing A2 style gas blocks quick and easy. Built with durable tool steel. Works on A2 front sights, S&W single-taper pin gas blocks and dual taper pins. Includes a finishing punch and ...Step 4: Install Gas Block. With your barrel nut properly greased and torqued, the next step is installing your gas block and then your handguard. Again, there are some small details here that often get missed. They can make a huge difference in the final product. Reinstall your gas block and make sure to check its alignment.

Everyone asks where I find AR-15 stuff in stock or where I order from, so here you are: http://bit.ly/2trc7KgThis is how to properly install or replace your ...

Kaw Valley Precision AR-15 Standard Low Profile Gas Block - .750 Usually Ships in 24 Hours MSRP: $24.95 . Sale Price: $19.95 . ... Real Avid AR-15 Gun Tool CORE - Critical Task Carry Tool Usually Ships in 24 Hours MSRP: $39.99 . Sale Price: $37.99 ... BCM AR-15 KMR Handguard Installation Kit Usually Ships in 24 Hours MSRP: $45.87 . Sale …238. 30K views 2 years ago. I tried several methods of getting my gas block roll pin into the gas block and gas tube properly. I watched all if the popular videos on how tondi this but...Gas Block Pin Punch Set. The Geissele Gas Block Pin Punch Set is made specifically for the removal and installation of the 0.078" roll pin that secures the gas tube to the gas block of an AR-15/AR-10. Removal of a rusted-in gas block roll pin has always been a challenge since there are no commercial pin punches in 0.078" diameter.Gas Block Installation (Pinning vs Set Screw) Jump to Latest Follow 7K views 4 replies 0 participants last post by Mercmar ...3. Use the gas block alignment tool to ensure the gas block is properly aligned with the barrel. 4. Use the gas block installation tool to press the gas block onto the barrel. Make sure to press it firmly and evenly to ensure a secure fit. 5. Use the gas block pin punch to drive the gas block pin into place. Make sure to drive it in straight ...To the right of the barrel is the VG6 Gamma 762 Muzzle Break that retails for $94.99. More on that later as well. The remaining two parts are the Rifle-Length Gas Tube at a cool $19.99. And the .750 Low-Profile Gas Block in Nitride that retails for $29.99. We're going to start with the Gas Tube and Gas Block assembly.Squeeze the Genie slightly to install into the forward face of the gas block so that the hole in the Genie is centered on the gas block hole. It may be easier to remove the rearmost set screw to do this. Part of the Genie should be sticking out the front side of the gas block. 2. Use a very fine point marker or scribe to make a mark on the ...

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Let's get started. Use a roll pin punch to tap the small gas tube roll pin into place. Before you install the gas block, the first thing you will want to do is install the gas tube into the block itself. This is done by inserting the gas tube into the gas block and driving a small roll pin into place, which ensures that the gas tube isn't ...GPT (Gas tube Pin Tool) is a jig tailor-made for installing and removing the gas tube roll pin on an AR15/M16 low-profile gas block. Machined in 6061 aluminum and Type III hard coat anodized, GPT makes installing the gas tube pin on a low profile gas block painless. GPT is designed to be stable and surefooted, but it is no larger than it has to ...The Gas Block Genie is a must-have tool for easily assembling your AR platform rifle. Gas Block Genie allows you to install your gas block to the perfect depth and angle on the first shot! It's reusable, and comes with instructions! All you'll need is a very fine point marker or scribe. Standard size Gas Block Genie. Fits all .750" barrels.Shop ArmaLite AR10/M15 Adjustable Gas Block | 4.4 Star Rating on 5 Reviews for ArmaLite AR10/M15 Adjustable Gas Block + Free Shipping over $49. ... Gunsmithing Tools. Armorer's Wrench. Gunsmithing Torque Wrenches. Sight and Optic Tools. Bore Sights. Reloading Components; Brass Cases. ... Easy to install, solved my ejection problem. Now handles ...This item: Wheeler Gas Block Taper Pin Removal Tool for Tactical Sporting Rifles Gunsmithing, Cleaning, Rebuild and Maintenance . $32.99 $ 32. 99. Get it as soon as Tuesday, May 7. ... UNBRAN Wrench for Removal and Installation Combo Wrench. $29.99 $ 29. 99. Get it as soon as Tuesday, May 7. In Stock. Sold by AnCAI and ships from Amazon ...Just sand down the tube until you have a snug fit. Do not remove material from the gas block. Posted: 1/5/2014 3:53:56 PM EDT. [#3] The gas block to gas tube seal is going to be from the roll pin channel through the gas tube, to the part of the tube sticking out of the gas block. The end plug for the gas tube is in front of the through channel ...Wheeler Gas Block Taper Pin Removal Tool for Tactical Sporting Rifles Gunsmithing, Cleaning, Rebuild and Maintenance. 4.0 out of 5 stars. 189. $32.99 $ 32. 99. ... Wheeler Roll Pin Install Tool Kit with Trigger Install Tool, Punches, Brass/Polymer Hammer and Storage Case for Gunsmithing and Firearm Maintenance. 4.6 out of 5 stars. 480. 50 ... ….

Feb 3, 2019 · Patreon: https://www.patreon.com/kotaboy32Email: [email protected] Facebook Page: https://www.facebook.com/Kotaboy32-14...Disclaimer: These vid... Low-Profile AR15 Gas Blocks: Low-profile gas blocks are usually very minimalist and small and thin. These are useful for weight reduction but are most commonly used for the installation of a free-float handguard which would be hovering over the top of said gas block. Free float handguards have many perks.AR-15 UPPER PARTS. >. AR-15 GAS BLOCKS / TUBES. >. GAS BLOCK ASSEMBLY FIXTURE - EASY ROLL PIN INSTALLATION WITH PUNCH. Installing gas block roll pins has never been easier! This jig allows you to hold the gas block in place while inserting the roll pin. Without the fixture I destroyed two roll pins and marred up my gas block and gas tube and ...Easiest Way to install your AR-15 Roll Pin. Roll Pin Wizard installation instructions. 1. Place the Wizard through the takedown pin hole so the rounded edge is facing toward the front of the lower receiver. 2. Place the punch through the hole in the Wizard, pointed toward the front of the receiver. 3.Stand the roll pin on a hard surface and tap the tool onto the pin to seat it in the tool. When the hole in the gas block grabs the roll pin, the pin will collapse enough so the tool can be removed from the roll pin. Afterwards, all that is needed is a tap with a punch to seat the roll pin in the gas block. Share your email and get 10% off!25. Everyone asks where I find AR-15 stuff in stock or where I order from, so here you are: I install my Damage Industries gas tube into my Geissele gas block using Geissele’s gas block tools. The Geissele gas block tools are designed to make installing the small roll pin as easy as possible. Geissele Tools: Damage Ind. Gas Tube:AR-15 Gas System. The BCG then picks up the next round in the magazine and pushes it into the chamber. Your weapon is now ready to fire again. The three parts of the gun you need to pay attention to is the gas system (which includes the gas block and gas tube), the bolt carrier group, and the buffer.Details. GPT (Gas tube Pin Tool) is a jig tailor made for installing and removing the gas tube roll pin on an AR15/M16 low profile gas block. Machined in 6061 aluminum and Type III hard coat anodized, GPT makes installing the gas tube pin on a low profile gas block painless. GPT is designed to be stable and surefooted, but it is no larger than ...Tools Needed: 5/32” Allen Wrench. Loc-tite® Thread Locker. Also required but not included: Throttle cable and housing. 3/8“ Wrench. 77/16” Wrench. 5/16” drill bit. 1/4-20 x … Gas block installation tool, Interesting, inexpensive and reusable tool for proper gas block alignment. Currently only available for .750 barrels but other sizes are coming. The Gas Block Genie is a must-have tool for easily assembling your AR platform rifle. Gas Block Genie allows you to install your gas block to the perfect depth and angle on the first shot!, Wheeler AR Pivot Pin/Roll Pin Install Tool $ 8.99. Add to Wishlist + Out of stock. ... Geissele Roll Pin Starter Tool for Gas Block. Save 12% MSRP: $ 12.50. Add to ..., The Gas Block Genie is a reusable alignment tool for AR-15 gas block installation, ensuring proper cycling of the semi-auto system. It is compatible with various types of gas blocks, including clamp-on, rail-block, and micro-size designs. Easy to use with a simple three-step process, making it a valuable addition to any AR building kit., HB Industries has announced the roll out of the CZ Bren 2 optimized gas regulator assembly for barrel lengths between 8 inch to 14 inch covering both 556 and 762 variants.. HB Industries states "We are proud to offer a direct replacement 3-position gas regulator for the CZ Bren 2S and MS. Our Optimized Gas Regulator Assembly includes both a new Body and Piston, both carefully tuned to ..., It’s so frustrating when you are doing research, wanting to check your social media or just tooling around the internet, only to find that your work or school administrator has blo..., Here is a simple home made jig from a $25 gas block. I made it when I had a few to install. It's in the tool box box and I use it for new installs - cheap tool and works great. These photos are part of a series, so the notes won't make sense. Drill through the top of the gas block using the set screw and gas holes as guides., Big, tough, polyethylene block gives fitted support for installing/removing the front sight assembly on mil-spec, AR-15 rifles and carbines. Precision-machined and clearly marked on both sides for driving the mounting pins “IN” or “OUT” of the sight. Accommodates the sling swivel, plus, includes provisions for removing the gas tube roll ..., GBU, or Gas Block Utility, was created to provide a sturdy and compact platform for users to install / remove gas tube pins on low profile gas blocks, and install / remove gas block pin on the barrel. Machined from a solid block of 6061 and anodized light green, it's 3.35" (L) x 2.45" (W) x 0.94 (H), it weighs 7.52 oz., Wheeler Engineering Delta Series AR Gas Block Taper Pin Removal Tool. 2.0. (6) Write a review. $39.99. SKU: 5091244. Remove A2-style gas blocks from your tactical rifle quickly and easily with the Wheeler Engineering® Delta Series AR Gas Block Taper Pin Removal Tool. Constructed of precision-machined steel, this..., Little Crow Gunworks AR-15 Gas Block Installation Tool Kit - 804073. $19.99 MidwayUSA LCG-GBT - details: Made from 4140 Chrome Moly Steel, the low profile gas blocks come with the gas block and installation screws. Available in.625".750", and.936" diameters. Mfg: Cmmg. $39.99 Spartan Defense Armory & Training, Today Kirk at Aero walks us through a quick tune on his AR15 using an Aero Precision Adjustable Gas Block., The hole in the tip of the Gas Block Roll Pin Tool is sized so that the roll pin will need to be pressed into the tool first (the roll pin will not just slide in). Stand the roll pin on a hard surface and tap the tool onto the pin to seat it in the tool. When the hole in the gas block grabs the roll pin, the pin will collapse enough so the tool ..., The size of the drill bit needed for a low profile gas block installation typically depends on the specific gas block model and the instructions provided by the manufacturer. However, a commonly used drill bit size for this type of installation is 5/64 inch., Adjusting your Gas Block You will need the following tools to adjust your adjustable gas block: • 5/64" Allen wrench • 3/32" Allen wrench 1. Loosen the jam screw about one turn. 2. Screw in the adjustment screw as far as it will go, then back it off one revolution. Re-tighten the jam screw. 3., DetailsGeissele Automatics Gas Block Roll Pin Tool is just what you need to make your next gas block installation a breaze. Designed to securely hold a 0.078" diameter roll pin, the hole in the tip of the tool has been sized to require a press fit, while still allowing for easy removal once the roll pin has been properly started into the gas block. This system simplifies and speeds up gas ..., This gas block and gas tube roll pin jig is here to provide support for your gas block as you install or remove the roll pin. Included is a recess for the old pin to fall into, along with an area for you to keep spare pins. This is designed and 3D printed in the United States and features a high infill pattern to ensure that it is super strong ..., If you plan on using an adjustable low pro gas block that wraps around your barrel instead of using set screws this gets easier. You'll need a #1 roll pin punch or a 1/16" punch to drive out/in your gas tube roll pin from the FSB into your new low pro gas block. You'll also need a punch big enough to drive out your FSB pins and a hammer big ..., Everyone asks where I find AR-15 stuff in stock or where I order from, so here you are: http://bit.ly/2trc7KgUsing the BRD Engineering Gas Block Dimple Jig, ..., Center the gas block with the upper receiver and slightly tighten back the screws. Now it is time to install the roll pin through the previously drilled hole in the bottom of the gas block. Hold both the roll pin and your roll pin starter punch, size 4s, in the same hand. Hammer the roll pin until it is even on both sides of the gas block and ..., Everyone asks where I find AR-15 stuff in stock or where I order from, so here you are: http://bit.ly/ar15partsI install my Damage Industries gas tube into m..., I have used many tools in my time assembling the AR platform, and the GPT is by far my favorite one of all. Plus it is ODG. -Brandon GPT (Gas tube Pin Tool) is a jig tailor made for installing and removing the gas tube roll pin on an AR15/M16 low profile gas block. Machined in 6061 aluminum and Type III hard coat anodized, GPT makes installing the gas tube pin on a low profile gas block painless., Sliding T-Bevel. This general-purpose layout tool measures angles and allows them to be transferred to a workpiece for cutting. Carpenters and cabinetmakers use sliding T-bevels all the time for many tasks. For a laminate flooring installation, you'll need a sliding T-bevel if some of the cuts you'll need to make are not 90 degree cuts., Install the BRDE drilling fixture over the block and secure the whole assembly in a vise. Chuck up a #31 bit in your drill press or mill and drill through the gas block and barrel using the hole in the fixture as a guide. Drill all the way through and remove the fixture from the barrel. Gradually ream the hole with a 2/0 taper pin reamer until ..., Heat it with a heat gun or small handheld propane torch. You aren't going to hurt tempering if you use some "common sense heat control." Tap the gas block with a punch or mallet and make it rotate. Once you get it moving it will be easier to slide it down the barrel. Posted: 7/5/2018 11:46:08 PM EDT., Gas Block Journal. Handguard Length. Barrel Profile. Magazine Capacity. Finish. Cartridge Compatibility. Rail System. Storage. Trigger Bow. Drop-in. Trigger Style. ... Bolt Catch Install Tool Kit; AR Trigger Guard Install Tool; 3 Starter Punches and 3 Driver Punches; Two Sided Hammer; 6 Steel punches in sizes: 1/16, 5/16 & 3/32; 3 with counter ..., We Install and review the new 87 Industries pin block on a Colt AR15.This is a great, easy to install, low profile gas block for the AR-15 rifles.Help suppor..., Wheeler Gas Block Taper Pin Removal Tool for Tactical Sporting Rifles Gunsmithing, Cleaning, Rebuild and Maintenance. 4.0 out of 5 stars. 190. $32.99 $ 32. 99. List: $41.99 $41.99. FREE delivery Sat, May 4 on $35 of items shipped by Amazon. More Buying Choices $28.54 (12 used & new offers), Description. The Gas Block Genie is a must-have tool for easily assembling your AR platform rifle. Gas Block Genie allows you to install your gas block to the perfect depth and angle on the first shot! It's reusable, and comes with instructions! All you'll need is a very fine point marker or scribe. Bull Barrel Gas Block Genie. Fits .936" barrels., Aero Precision Adjustable Gas Block. Adjustable. $55.24. Seekins Precision Adjustable Low Profile Gas Block. Adjustable. $57.00. Phase 5 Low Profile Gas Block. Non-Adjustable . $25.99. 2A Armament Ultra-Lite Titanium Gas Block. Non-Adjustable. $64.39. Faxon Firearms Ultra Low-Profile Gas Block. Non-Adjustable. $28.49. Odin Works .750 Low ..., 7. Are there specific gas blocks for different barrel types? Yes, there are gas blocks designed for different barrel profiles, such as .750″ or .625″ diameter barrels. 8. Can I install a gas block myself? If you have the necessary tools and knowledge, you can attempt to install a gas block on your AR-15 yourself., The Brownells Gas Block Roll Pin Punch Kit allows easier installation and removal of the gas tube roll pin on the AR-15/AR-308 firearms system. SPECS: Includes 3 punches, 5/64" Roll Pin Starter Punch, 5/64" Roll Pin Punch, 5/64" Roll Pin Holder. .300 Blackout AR-15 Barrel Change. Share your email and get 10% off!, The Gas Block Genie is a must-have tool for easily assembling your AR platform rifle. Gas Block Genie allows you to install your gas block to the perfect depth and angle on the first shot! It's reusable, and comes with instructions! All you'll need is a very fine point marker or scribe. Pencil Barrel Gas Block Genie. Fits all .625" barrels., DetailsGeissele Automatics Gas Block Roll Pin Tool is just what you need to make your next gas block installation a breaze. Designed to securely hold a 0.078" diameter roll pin, the hole in the tip of the tool has been sized to require a press fit, while still allowing for easy removal once the roll pin has been properly started into the gas block. This system simplifies and speeds up gas ...