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Rainier Arms, LLC

Rainier Arms Gas Block Barrel Dimpler

Rainier Arms Gas Block Barrel Dimpler
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Availability: Out of stock




Easily secure your low profile gas block by drilling proper sized dimples every time. One screw aligns with the gas hole while the other nylon tipped screw tightens down on the barrel holding it securely in place. Use a 11/64 drill bit to properly drill out the dimples. Fits, VLTOR, PRI and many other low profile gas blocks.

Diameter from center to center gas ports: 0.450

JIG Instructions:

Additional Info

Additional Info

Manufacturer Rainier Arms, LLC
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (5)

Worked PerfectlyReview by TK
Having attempted to dimple a barrel recently without a similar tool and achieving less than ideal results, let me say that this tool worked exactly as it was intended. The I.D. is a bit large for the .750 barrel surface, but a strip of masking tape on either side of the barrel centered the tool in position perfectly. It took longer to set up my drill press than it did to dimple the barrel. This was money well spent. (Posted on 12/12/2016)
Not for a varmint barrelReview by Barry
I guess my n00b self deserves this making the assumption that it'd work and it likely does on a standard profile barrel, but if you happen to have a varmint barrel, no workie workie.

No where in the description does it say this though. Not a bad tool for the tool box, but will have to wait for the next rifle. (Posted on 9/18/2016)
No commentReview by Charles
This dimpling jig made short work of dimpling my barrel for my gas block. I verified the holes on the jig matched my gas block and from there it was easy. Some cutting oil and light pressure just enough to make the indention/dimple without going into the barrel rifling. A very nice tool that takes the guess work out of dimpling your AR build. (Posted on 9/8/2016)
Excellent ToolReview by James
Does just what it's supposed to do. Fit was perfect on the barrel and made the finish work simpler and more accurate. (Posted on 7/13/2016)
Not badReview by Tommy
This tool does what it should. After the first 1 or 2 I noticed it was a little off. Not enough to do harm or make rifle not function properly. Then I started using shims on both sides of barrel, to hold tight, take up any slop, and keep barrel centered. This tool now works perfectly. Do to barrel companies machine work the extra ply is not unwarranted. Good tool. Good price. (Posted on 5/24/2016)

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