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

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Wojtek Click Adjustable AR-15 Gas Block with Gas Tube and Roll Pin

Outfit your AR-15 with an overhauled gas system, with the new Wojtek Weaponry Arkto gas block, AT3 gas tube with roll pins, and all the tools you’ll need to install. The Arkto gas block features 24 gas settings with positive clicks for adjustment, and a NiPTFE finish to resist carbon lockup. Just choose the gas block diameter and gas tube length you need, and you’ll have the perfect package to upgrade your AR-15.

NOTE: .875 Arkto Click Adjustable gas block is no longer available. For an adjustable (just not click-adjustable) you can find those .875 kits here.

No matter what package you choose, it will include the following:

Wojtek Arkto Gas Block
AT3 Stainless Steel Gas Tube
2 AT3 Gas Tube Roll Pins
Allen Wrenches for adjustment and installation
2ml vial of Vibra-tite

Will this fit under my free float handguard?

The Arkto fits great under most slim free-float handguards. The AT3 SPEAR M-LOK Rail and Quad Rail, the Aero ATLAS S-One and R-One, and many more will work great with the Arkto underneath. If you’re not sure, feel free to consult the diagrams for the gas blocks in the image gallery, or reach out to us. We’ll be happy to help you get exactly what your build needs.

How do I install this?

First, you’ll need to remove your standard gas block and tube from your rifle. Slide the Arkto onto your barrel, align the top witness hole with your barrel’s gas port. Then, secure the set screws to clamp the gas block in place. Wojtek Weaponry recommends using the included Vibra-tite on the screws, and going no further than hand tight.

After the threadlocker cures, secure your gas tube to the gas block with a roll pin. For more info on how to set up your gas block at the range, check out this guide to installing and tuning your gas block.

Wojtek Arkto Specifications

Fit: AR-15/AR-10 Barrels
Material: 1018 Steel
Finish: Melonite
Weight
- .625″ Diameter: 1.6 oz
- .750″ Diameter: 1.7 oz
- .936″ Diameter: 1.9oz

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″

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.