Black Rain Ordnance SPEC15 .458 SOCOM 16-Inch 10rd Rifle Black The Black Rain Ordnance SPEC15 is a semi-automatic AR-pattern rifle chambered in .458 SOCOM. This black configuration combines a 16-inch barrel with a 10-round capacity and includes one magazine. The .458 SOCOM chambering is the defining rifle cartridge specification of this SPEC15 version. The 16-inch barrel identifies its barrel configuration, while the magazine information separates capacity from package quantity: 10 rounds per magazine, with one magazine included. These are the key cartridge, barrel and package details for selecting this rifle. Key Features .458 SOCOM chambering: The cartridge identity for this rifle. 16-inch barrel: The barrel length. Semi-automatic AR pattern: The action and platform. One magazine: Includes one magazine with a 10-round capacity. Specifications Manufacturer: Black Rain Ordnance Model: SPEC15 Action: Semi-automatic Caliber: .458 SOCOM Barrel: 16 inches Capacity: 10 rounds Magazines: 1 Color: Black Shop the Black Rain SPEC15 .458 SOCOM 16-Inch Rifle at BattleHawk Armory.