Spike’s Tactical ST-15 LE M4 Carbine Rifle is designed for law enforcement. The chrome moly vanadium barrel is chrome lined, threaded, has an A2 flash hider, and is Mil-Spec phosphate coating. The 7075-T6 lower features proprietary low shelf, RDIAS compatibility, and has a hard coat anodized finish. Its proprietary gas tube has a black nitride finish both inside and out, while the charging handle has a Mil-Spec type three coating. The Spikes Tactical M4 stock features 6-position mil-spec buffer tube and a Spikes pro grip. The ST-15 LE M4 Carbine also has a jeweled mil-spec trigger, A2 front with a Magpul MBUS rear sights, and sling swivel. It includes a hard case. This model has a 16″ barrel and a 12″ BAR2 rail. It comes with a magazine.