B5 Systems CAR15 Handguard, Carbine Length, Black, Fits AR Rifles CHG-1561 The CAR 15 Handguard pays homage to classic firearm parts and accessories. The venerable design features a light weight slim profile that stays true to the original 6 hole design. A single heat shield and accurate detail refined by advanced manufacturing and constructed from modern Mil-Spec materials. A drop-in replacement handguard for the retro and minimalist rifle enthusiast.