Seekins Precision SP10 in .308 Win with 18-inch stainless steel match barrel. Seekins AR-10 pattern rifle uses their proprietary low-profile receiver set with improved feed geometry and a free-float handguard machined in-house for a precision-fitted system. Type: Rifle Action: Semi-Automatic Caliber: .308 Win Capacity: 20 Year introduced: 2013, USA Weight: 130 oz Overall length: 37.75" Status: Active Intended use: Precision Shooting, Hunting, Competition