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Kaw Valley Precision AR-15 Adjustable Gas Block
$34.95 $31.49 Save 10%
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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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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

GAS RELIEF

by Richard Morse, Verified Owner from UT, United States Written on January 28, 2026
Replacing "alike" nonadjustable that has similar profile.. actually. replacing a spare adjustable gasblock that I had purchased a long while ago ( for a diff build ). It turned out to be a POS, it used Torx hardware ( not the issue ), that was so small ( the issue )on the adjustment valve that it stripped. It was still new and never used. by the time I got it out it was mangled... The new Kaw Valley product uses a bigger beefy allen key, everything moves as intended. Although my build is ready for live tests and tuning I havent been able to get away to do it...
Would recommend: Yes
Was it helpful to you? Yes | No

Great all around gas block that is ultra high quality!

by Tim, Verified Owner from AZ, United States Written on November 30, 2025
I have pretty much standardized on this gas block. It is simple to install the gas tube with no pounding on roll pins. Plus the adjustable feature is great to have on any serious build. The quality of Kaw Valley products is second to none!! And of course Optics Planet always has a great in stock assortment that ships quickly!
Would recommend: Yes
Was it helpful to you? Yes | No

Good product

by Joe, Verified Owner from CO, United States Written on October 12, 2025
Easy to install no leaks didn't notice any movement with adjustment screw but used lock tite after tuning.
Would recommend: Yes
Was it helpful to you? Yes | No

it works but ajustment screw is to loose

by Nick, Verified Owner from TX, United States Written on September 15, 2025
It seems like good quality and I like the screw for the gas tube pin but how is the gas adjustment supposed to lock down because the adjustment screw is very loose and walks while shooting. I had to take a punch and stake it.
Pros:
  • Quality
  • gas tube pin
Cons:
  • adjustment screw walks
Would recommend: No
Was it helpful to you? Yes | No

fits very nicely

by Timothy Pritchett, Verified Owner from VA, United States Written on September 1, 2025
Love all of there products always reliable and well made a cut above the rest
Would recommend: Yes
Was it helpful to you? Yes | No

Kvp adjustable gas block

by Plinker, Verified Owner from KY, United States Written on August 11, 2025
The best part about this is the screw that acts as a roll pin. Everything els is worthless. Doesn’t adjust gas flow at all. Literally didn’t notice a difference in the recoil or how fast or slow the bcg was moving. I would not recommend this to anyone. In fact I would like to have my money back for this disaster of a product.
Pros:
  • Set screw roll pin
Cons:
  • everything else about them sucks
Best Used for:
  • Staying on the shelf collecting dust
  • Paper weight or staying on the shelf
Would recommend: No
1 of 1 found the following review helpful.
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great gas block

by James Smith, Verified Owner from AL, United States Written on July 23, 2025
Absolute love this adjustable gas block! Workes perfectly on my over gased diamondback db15.
Would recommend: Yes
Was it helpful to you? Yes | No

Just don’t! save yourself!

by Claudiu Ene, Verified Owner from GA, United States Written on April 23, 2025
The only redeeming feature is how this mates to your tube. That, is genius. Everyone else should follow their example with this screw type mating system.

That’s it. Everything else is trash!

The set screws on the bottoms don’t line up with the dimples of any barrel I tried. The gas block is extremely leaky, with carbon buildup around the base, tube opening and screw port within few rounds. Instructions are abysmal. The adjustment screw is looser than a marble rolling down a hallway and went flying after a few rounds attempting to make adjustments. I applied loctite, and it felt better, but I’ve seen better engineering /fit and finish on free Temu items
Pros:
  • mating system to gas tube
Cons:
  • everytging else!
Best Used for:
  • Paperweight
Would recommend: No
2 of 2 found the following review helpful.
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Complete junk

by Gary, Verified Owner from GA, United States Written on March 24, 2025
Adjustment screw does not stay put, comes out completely easily and the slightest cross-thread strips it. Cheap junk, do not buy.
Would recommend: No
0 of 1 found the following review helpful.
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