DEMO Daniel Defense M4A1 14.5 in Barrel 5.56mm NATO Upper Receiver Group. This two-piece free-floating rail system allows the mounting of devices like a M203 grenade launcher without influencing the barrels harmonics eliminating problems like...
DEMO Daniel Defense M4A1 14.5 in Barrel 5.56mm NATO Upper Receiver Group. This two-piece free-floating rail system allows the mounting of devices like a M203 grenade launcher without influencing the barrels harmonics eliminating problems like...