Adjustable AR-15/AR-10 Gas Block by Wojtek Weaponry – 4 Sizes Available

from$45.39
Gas Block Size: Choose gas block size
Allen Wrenches: Choose allen wrenches
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Product description

Finally, an affordable adjustable gas block in 4 sizes: .625″, .750″, .875″, and .936″.

We have a fit for every barrel!

AT3 is proud to carry adjustable gas blocks from Wojtek Weaponry, giving you an affordable upgrade to your rifle’s gas system. These gas blocks are fully adjustable, regulating the flow of your rifle’s gas impingement for improved reliability and longevity. Whether you’re adjusting a new AR pistol to prevent over-gassing, or custom tuning a precision rifle’s action, these gas blocks will make all the difference in your new build.

These gas blocks also clamp onto the barrel, improving barrel harmonics and accuracy over gas blocks that use pressure directly on the barrel with pins or set screws. It is recommended to use a removable thread locker – such as Blue Loctite – on the set screws that tighten the block around the barrel. Do not use thread locker on the adjustment or locking screws.

Features:

  • 4 sizes available: .625″, .750″, .825″, and .936 (.750″ is the most common size, but always measure the barrel if you aren’t sure!)
  • Low profile design, perfect for any free-float handguard
  • Steel construction (better than aluminum for withstanding extreme temperatures)
  • Secured using 3 set screws to clamp the gas block onto the barrel, increasing accuracy over pinned or set screw gas blocks
  • Gas tube roll pin included
  • Compatible with AR15 and AR10 platforms
  • Allen wrenches for attachment, adjustment, and locking set screws are optional but highly recommended.

Sizes as follows:

  • Adjustment screw = 5/64″
  • Side locking screw = .05″
  • Attachment screws= 3/32″

Specifications:

  • Material: 1018 Steel, Black Nitride
  • Length: 1″
  • Height: Sits 3/8″ off of the barrel (fits under all free float handguards!)
  • Weight: 1.3-1.8oz depending on size
  • Packaging: PE Bag

Frequently asked questions:

Q: How can I tell what size of gas block I need?

A: The gas block size is based on the outside diameter of your barrel. The most common size is .75″ (this is the military standard). If you aren’t sure – use calipers to measure the diameter of the barrel, in the area where the gas block sits. Or alternatively, you can try looking up the make and model of your rifle online for more details.

Q: How do I know if this gas block will fit under my handguard?

A: These adjustable gas blocks are as small as you will find on the market. They are guaranteed to work with our AT3 handguards, and they should be compatible with all the other handguards out there!

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Customer reviews 56

willsondevin.c Verified buyer
The port in this gas block is smaller than in a standard gas block, so the flow is already reduced without adjusting it. I bought this for a .300 BLK pistol to switch between supers and subs, but the pressure is too little to cycle subsonic rounds.

AT3 Tactical · Thank you for your feedback on our Adjustable AR15/AR10 Gas Block. We apologize for any inconvenience you experienced with the smaller port size. Our gas block is designed to provide precise gas flow control for optimal performance, but we understand that it may not be suitable for all rifle setups. If you would like to discuss further options for your .300 BLK pistol, please don't hesitate to reach out to our customer service team. We are always happy to help find the best solution for your needs.

andrew.hardas Verified buyer
Excellent product, fast shipping, couldn't have asked for more. Thank you!
Chace arnold Verified buyer
This is an awesome gas block. Love that you can see the port in barrel and line it up perfectly. I was able to determine that my rock river upper had the factory gas block installed in the wrong spot. They had gas block pushed tight against the shoulder of the barrel and it needed to be set out at least .025. This gas block allowed me to verify this and install it correctly.

AT3 Tactical · Thank you for your review! We're glad to hear you're happy with the product and the company.

Peter Johnson Verified buyer
Adjustable AR15/AR10 Gas Block by Wojtek Weaponry – 4 Sizes Available

AT3 Tactical · Thanks for the review! We're glad to have you as a customer.

ldiede Verified buyer
Have not used to date

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Daniel Pielmeier Verified buyer
Fast shipping. Part fit and worked as it should. Wonderful price point and a must have if your running suppressed

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Ryan Ray Verified buyer
I really like this has block. It's easy to align as it has a hole in the top you can look through to align it with the gas port. The 3 screws hold it tight. Be careful on the torque, I broke one, might have been a week bolt or possibly my fault. Would recommend!

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Swede. Verified buyer
The block itself looks good and should do the required job. However I have to say the complete lack of installation specifications is rather poor. After researching it on their own website it wasn't much better since the recommendations was to 'torque' the clamping screws to 'snug or handtight' and to space it of the barrel shoulder with a credit card... Rather unprofessional. I did the research though and the screws which seems to be #3 Machine screws should be 7.6 in/lbs, and use some blue LocTite. Spacing would be done to your specific rifle, which is easy since they have drilled a hole thru the top so you can look thru and align it!
wabeam Verified buyer
first rate , fits perfectly

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

Michael Jones Verified buyer
The block itself was easy enough to position thanks to the witness hole at the top and a very small drill bit. It seems like the 3 compression screws will Keep it very well secured to the barrel without using stupid thread locking compounds. Unfortunately for me the set screw for the adjustment screw is partially blocked by my hand guard so I will have to remove the free float hand guard every time I want to adjust it it seems. A minor inconvenience though and I look forward to heading to the range soon to see how it works. I purchased it because I planned on shooting both suppressed and unsuppressed on a 10.5" barrel.

AT3 Tactical · Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

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Warranty & returns

Backed by the Wojtek Weaponry Warranty!

Wojtek Weaponry Warranty

  • We will gladly accept the return of products that are defective due to defects in manufacturing and/or workmanship.
  • Fulfillment mistakes that may be made which result in the shipment of incorrect products to you will also be accepted for return.

Contact Details:

Please send an email at returns@wojtekweaponry.com

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

90-day no-hassle returns

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

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