This Ncstar AR15 KeyMod® Free Float Handguards is 15" long and low profile super light weight with octagon shaped desined for AR15/M4 rifle handguard replacment. The top Picatinny rail is at AR15 receiver height for one strait rail. The other 7 sides have KeyMod slots for rail accessories. Handguard includes barrel nut, hand guard adapter insert and short and medium KeyMod to picatinny accessory rails. Top picatinny rail has laser engraved t-slot numbers. Made from black hard anodized aluminum.
Note: This Free Float Hand guard installation requires a low profile gas block.
We Suggest You Get A Low Profile Micro Gas Block Item MZH-MGBO1.