We Ship Fast!

Order by 1PM CST for Same Day Shipping (Mon-Fri)

Wojtek Weaponry Adjustable Gas Block - 4 Sizes Available

Wojtek Weaponry Adjustable Gas Block – 4 Sizes Available


MSRP: $44.99


Out Of Stock

90 Day No-Hassle Returns We Pay Return Shipping

We have a 90-day no-hassle return policy. We pay return shipping.

If you need to request a return, contact us at support@at3tactical.com and we will send you a return label

After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at support@at3tactical.com. We may direct you to pursue your warranty claim directly with the manufacturer.

Your satisfaction is our #1 priority

If you’re dissatisfied with your purchase, in any way, please contact us at support@at3tactical.com – we will do our best to make it right.

Fast & Free Shipping On orders over $50

You will receive fast, free shipping for all orders over $50

Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.

Most orders received by 1pm CST ship the same day

You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.

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 overgassing, 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 threadlocker – such as Blue Loctite – on the set screws that tighten the block around the barrel. Do not use threadlocker on the adjustment or locking screws.


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


  • 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!

Have Questions About this Product?

You have not viewed any product yet!

Customer Reviews

Based on 8 reviews
Best value

Performs just as good as the more expensive ajustable gas blocks. Will use again on future builds.

Thanks for sharing your feedback. We're so glad you're satisfied with your purchase. Cheers!

Quality appears to be excellent. Haven’t got it tuned for specific load for this firearm yet but adjustments so far are satisfactory. Installation easy and very solid. My only complaint is it would be a plus to include the 12 inch 5/64 adjustment wrench in the package. Very difficult to make adjustments with one provided with this particular handguard. I know they are an option to purchase but for the price and shipping, not gonna do it. Over all, so far very satisfied with product. Will recommend and purchase again in the future.

Thanks for sharing your feedback. We're glad you're satisfied with your purchase. Cheers!
300 blackout pistol build

The best on the market

Thanks for sharing your feedback. We're glad you're satisfied with your purchase. Cheers!
received in great time

I received my gas block fast and have installed in on my 6.5 creedmore it workers great

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!
Very nice gas block

I used one of these on a 308 pistol build a few weeks ago. Runs great, easy to adjust, easy to install, and seems at least as reliable as other gas blocks I've used. Will be buying one in a few weeks for another 308 build I'm planning. Can't see a reason to use anything *but* these at this point.

Thanks for sharing your feedback, Mark. We're glad you're satisfied with your purchase. Cheers! - AB