The Seekins Precision SP15 is a 16-inch precision-built AR-15 from one of Idaho's premier firearms manufacturers. Seekins machines their billet upper and lower receivers in-house from 7075-T6 aluminum, producing a tighter fit and more aesthetically refined package than mil-spec forged receivers. The SP15 ships with a Seekins MCSR M-LOK handguard, Nickel-Boron coated trigger, and a mid-length gas system. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2012, USA Weight: 66 oz Overall length: 32.5" Status: Active Intended use: Precision Rifle, Competition, Home Defense