Bowden Tactical's Cornerstone handguard is a 13" free-float M-LOK handguard for AR-15 rifles, with a competition-style top. It is made from American-sourced 6061-T6 aluminum with a Type III hard coat black anodized finish, and comes with a heat-treated 4140 steel barrel nut. The 1.3 in inside diameter clears most low-profile gas blocks.
- Fits: AR-15
- Length: 13"
- Attachment: M-LOK slots at 3, 6 and 9 o'clock
- Top: competition top
- Material: 6061-T6 aluminum
- Finish: hard coat black anodized (Type III)
- Inside diameter: 1.3 in; outside width: 1.5 in
- Includes: 4140 steel barrel nut (nitrided), mounting hardware and instructions
