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Kaw Valley Precision AR-15 Adjustable Gas Block
$34.95 $29.95 Save 14%
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Most Helpful Positive Review Super easy to install
What I like most about this block is the modified set-screw instead of a roll pin for holding the gas tube in place. No matter how many times I've installed a gas tube, I usually end up screwing up at least one roll pin getting the gas tube mounted to the block. The screw in pin that holds the gas...
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Most Helpful Negative Review Heck Knaw Prescision
This Gas Block looks Great but the screw that adjusts is not long enough! Another issue is that there is not a detent on the adjustment screw!!
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good gas block 1 flaw

by Cliff, Verified Owner from IA, United States Written on July 14, 2026
Buy a spring punch and hit the threads a few times in multiple places or angle a chisel and lightly mar the the threads leaving first few rows intact, no retention is its only flaw, the screw for the gas tube is epic, machining is great, all gas blocks leak until carbon fills the cracks dont let them reviews say otherwise ive spent $2000 years ago on best of everything guns that they leaked its the nature of tolerances cant make it that toght for every barrel
Would recommend: Yes
Was it helpful to you? Yes | No

no set screw or retention on adjustment screw

by Cliff, Verified Owner from IA, United States Written on July 8, 2026
Could have been amazing for the price, now i have to punch the threads or something to hold the screw in place, even red loctite will come lose if i do a couple mag dumps , spend a few bucks more buy something with a detent or retention screw
Pros:
  • None
Cons:
  • cheaply made no retention on adjustments screw
Would recommend: No
Was it helpful to you? Yes | No

Junk do not buy,

by Dave, Verified Owner from VA, United States Written on June 19, 2026
The adjusting screw on this gas block has no detent or way to lock it in place. You basically have to use high temp Loctite. Therefore you would never be able to adjust it on the go.
Would recommend: No
Was it helpful to you? Yes | No

kaw valley GB

by PJ, Verified Owner from NJ, United States Written on June 12, 2026
A top quality product. Will by again and again. Meets / exceeds expectations in terms of Fit, finish, function and price. Plus easy installation.
Would recommend: Yes
Was it helpful to you? Yes | No

Easy to mount and use.

by Turk, Verified Owner from PA, United States Written on May 21, 2026
Screw for tube fixing, is an exceptional improvemet over other pinned ones I've used.
Pros:
  • The pins elimination
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

works well.

by peemud, Verified Owner from CO, United States Written on April 21, 2026
Only concern is gas set screw might back itself out.
Would recommend: Yes
1 of 1 found the following review helpful.
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Awesome product

by Taylor Hebert, Verified Owner from LA, United States Written on April 3, 2026
Looks great on my rifle haven't been able to shoot it yet to set it but when I do ill add on to review
Pros:
  • Looks great easy access to adjusting screw
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

it worked, but..

by Jaison, Verified Owner from WI, United States Written on April 2, 2026
The good is that it did let me tune it, and the threaded pin was easy. The bad is there’s no screw to lock the adjustment screw down and mine backed off eventually. I started throwing casings forward pretty good. Also with it off the gun I was not able to close the passageway completely. Installed it did choke enough to prevent the BCG from cycling and did let me tune it to the sweet spot, but that adjustment screw did work loose later on.
Would recommend: Yes
3 of 3 found the following review helpful.
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great priced adjustable gas block

by Sneak, Verified Owner from VA, United States Written on March 29, 2026
Bought this to go in a suppressed .300 BlK and it was easy to adjust and went on great. So far so good, a little afraid of the gas screw loosening up. Bought around the same time as the a an adjustable block and seems to be easier to adjust.But doesn’t have the locking screw like the a does, but for the price I can buy another when and if I lose it.
Would recommend: Yes
Was it helpful to you? Yes | No

Such A Deal@

by William Quick, Verified Owner from IN, United States Written on February 14, 2026
Very solid piece of work. The gas block installs very easily, due to the use of a screw to.the threaded gas tube retention pin that eliminates the installation awkwardness surrounding tiny gas tube roll pins! My gunsmith loved that! The gas adjustment is made with a hex allen wrench which fits an easily reached socket that has several noticeable clicks that are easy to feel while tuning your gas block. It’s a heck of a value for the price. Maybe better than many of the high-priced spreads. I have no idea why hardly any competitors go with the screw-in retention pin rather than the frustratingly difficult to install roll pin. Now if only they offered an .875 version!.
Best Used for:
  • AR Builds
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.