ohhunt 4 inch Free Float Quad Rail Handguard with Steel Barrel Nut AR-15/M4

Four Picatinny Weaver Rails for the Installation of Flashlight, Laser and Red Dot Sight Scope and so on. CNC Machining, No Sharp Edges, All the Cutout Edges are Beveled to Ensure the Safety for Handling. Pre-Drilled at the End for the End Cap (Not Include), Keep Debris and Branches from Getting Caught Up in the Rail System. Shock Proof Can be Used on Real Fire Caliber. Guide Type: AR-15/M4 Quad Rail Handguard. Compatibility: For AR-15/SR-15 based platforms only, not compatible with SR-25 variants. Length: 4 inch (4") Finishes: Matte. Materials: 6061 Aluminum Alloy. Rail Type: Picatinny Weaver. No. of Rails: 4.