A 1.3 inch I.D. will accommodate most low-profile gas blocks. Some interference with clamp-on style low profile gas blocks is possible. MLok slots at the 3, 6 and 9 positions are manufactured to MAGPUL standards. This ensures proper fitment with any MAGPUL certified accessories. Every AR10 & AR15 Cornerstone handguard comes with a pre-heat treated, 2 inch length 4140 steel barrel nut. This ensures rigid, rock-solid accessory mounting. The barrel nut has been nitrided, not phosphated. Mounting instructions and hardware are included with every AR10 & AR15 handguard.
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| Finish: | Anodized |
| Style: | M-LOK |
| Free Floating: | Yes |
| Rails: | Picatinny |
| Model: | Cornerstone |
| Diameter: | 1.30" |
| Includes: | Barrel Nut |
| Hardware: | |
| Series: | Competition Handgaurd |
| Color: | Black |
| Firearm Fit: | AR-Platform |
| Weight: | 9.50 oz |
| Length: | 15" |