AR-15 BT Cornerstone Standard Handguard Features:
- AR-15 Cornerstone Standard series handguard in black hard coat anodize.
- Standard handguard comes with a full length picatinny rail the whole length of rail.
- A 1.3 inch I.D. will accommodate most low profile gas blocks. We have seen some interference with some clamp-on style low profile gas blocks
- MLOK slots at the 3,6 and 9 positions are manufactured to MAGPUL standards to ensure proper fitment with any MAGPUL certified accessories.
- Every handguard comes with a 4140 pre-heat treated steel barrel nut that has been black nitride coated not phosphates coated. All mounting hardware is included with full mounting instructions.
- A two inch long barrel nut ensures rigid mounting for rock solid accessory mounting. This system will not work with piston driven rifles.
- American made from American sourced 6061 T-6 extruded aluminum.
- Hard-coat anodized in accordance with MIL-A-8625 Type III class II.
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