Radical Firearms, AR-15 Rifle 5.56 Nato, 16" Socom Profile Barrel, RPR Free Float Rail, 30 Rd Mag, B5 Bravo Stock, Shooters Pkg W/ Crimson Trace Optic Radical Firearms FR16-5.56SOC-15RPR-CTS: The Radical Firearms 16" SOCOM 5.56mm AR rifle uses MIL-STD Upper and lower receivers along with our 15" RPR free float rail system for increased accuracy, keeping your hands cool, and giving you plenty of room for accessories. This package ships with a Crimson Trace Red Dot Optic. Regardless if it's your first or fiftieth, a Radical Firearms AR rifle will not disappoint. Note, we used a factory image of the rifle as a primary image here and the factory image does not show the magazine. However, the rifle does ship with a 30 round magazine. Rifle also ships with a Bonus Crimson Trace CTS 25 Low Profile Red Dot Optic which is perfect for this rifle.