Wojtek Weaponry Adjustable Gas Block + Gas Tube + Roll Pin Combo

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Gas Block Size
Gas Tube Length

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Backed by the Wojtek Weaponry Warranty!

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The Best Value in Adjustable Gas Blocks!

This combo includes your choice of 4 different sizes of gas block, your choice of 4 different gas tube lengths, plus roll pin.

How to purchase:

Use the dropdown menus to choose your size of gas block and gas tube length. Not sure what size you need? Check out the FAQ at the bottom of this page.

About the Wojtek Weaponry Adjustable Gas Blocks:

4 sizes available: .625″, .75″, .825″, and .936 (.75″ is the most common size, but always measure the barrel if you aren’t sure!)
Low profile design, perfect with most free float handguards
Premium steel construction (better than aluminum for withstanding extreme temperatures)
Clamp-on design using 3 set screws (screws, allen wrench and roll pin included)
Includes wrenches for installation and gas adjustment

About the AT3 Gas Tubes:

Premium stainless steel gas tubes, available in 4 lengths. Backed by a lifetime warranty.

Not sure what size you need? Measure the distance from the barrel shoulder to the gas port on your barrel and compare to the chart below. (Carbine is the most common length).

Distance to port:

Pistol = 4 inches
Carbine = 7 inches
Mid = 9 inches
Rifle = 12 inches

More details:

Wojtek Weaponry Gas Block Specifications:

Material: 1018 Steel, Black Finish
Length: 1″
Height: Sits 3/8″ off of the barrel (fits under all free float handguards)
Weight: 1.5-1.8oz depending on size

AT3 Gas Tube Specifications:

Material: Stainless Steel
Finish: Natural

Total Tube Length:

Pistol: 6 3/4″
Carbine: 9 3/4″
Mid-length: 11 3/4″
Rifle: 15 1/4″

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

Q: How do I know what size of gas tube I need?

A: Measure the distance from the barrel shoulder to the gas port on your barrel and compare to the list below. (Carbine is the most common length).

Distance to port:

Pistol = 4 inches
Carbine = 7 inches
Mid = 9 inches
Rifle = 12 inches

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.