This g4 13.3" one piece free float handguard is m-lok compatible.It features a 4140 heat treated barrel nut and torque plate.It has a super slim 1.5" outside and 10.3" inside diameter.It has a continuous mil-std 1913 picatinny top rail.100% made in the usa.
Rails: Picatinny
Firearm Model: AR-15
Material: Aluminum
Finish: Anodized
Free Floating: Yes