Black Rain Ordnance SPEC15 5.56mm NATO 16in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds - The Black Rain Ordnance Spec series is a line of AR15 rifles and pistols built to meet bid requirements for law enforcement and military personnel and as an affordable option for civilian use. Direct Impingement Gas System; Non-Adjustable Gas Block; Salt Bath BCG; 7075 T6 Aluminum Upper And Lower Receiver; 4150 Chormoly Barrel; 12in M-LOK Hybrid Handguard; A2 Flash Hider; Magpul MOE Buttstock;