This pre-owned Spikes Tactical Model ST15 is a right-hand semi-auto rifle in 5.56 NATO Cal. It has a 16-inch barrel plus the muzzle device. The butt stock is adjustable/telescoping, and it has a textured black rubber grip full pistol grip with finger grooves. Overall, this rifle is in good condition. The bore is clean, however the finish on the barrel has some discoloration under the handguard. These photos are the best statement of condition; please review them carefully before purchasing.