This Ncstar AR15 KeyMod® Free Float Handguards is 13" long and low profile super light weight with octagon shaped desined for AR15 and M4 rifle. 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.