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

Based on 56 reviews

Orders will Ship within 1 Business Day

Backed by the Wojtek Weaponry Warranty!

TOP ADD-ON'S

AT3 Tactical Crush Washer - 1/2 Inch for 5.56/.223

AT3 1/2 Inch Crush Washer for .223/5.56 Muzzle Devices

$1.99

AT3™ AR-15 Gas Tube Roll Pins - Set of 2

AT3™ AR-15 Gas Tube Roll Pins – 2pcs

$1.39

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!

Products available on this page:

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.

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.