The NcSTAR MAR4S 6.5" Length Aluminum Quad Rail Handguard in black is the pinnacle of tactical enhancement for your .223/5.56 carbine. Designed for optimal performance, this handguard ensures a perfect fit with carbine-length gas systems, providing an impressive platform for all your tactical needs. Crafted from durable aluminum with a sleek black anodized finish, the MAR4S is not only lightweight but also features generous ventilation to keep your weapon cool during intense use. Installation is seamless, requiring no gunsmithing, making it an essential upgrade. 3rd Generation MAR4S, optimized for weight and slim profile Compatible with carbine length gas systems using GI Handguard Cap and Delta Ring Stable quad rail for mounting various accessories Ventilation holes for barrel cooling Simple installation with four Allen screws, no gunsmithing needed All aluminum construction with black anodized finish Laser engraved rail markings for easy accessory alignment Length: 6.5" (6.7" O.A.L.), Width: 2.3", Height: 2.3", Weight: 9.9 oz Enhance your tactical setup with the NcSTAR MAR4S for superior versatility and performance.