The Seekins Precision SP300 is a precision-machined .300 Blackout AR-15 featuring Seekins' proprietary billet upper and lower receiver set, NiB-coated bolt carrier group, and free-float MLOK handguard. The SP300 occupies the premium segment of the .300 BLK market. Type: Rifle Action: Semi-Automatic Caliber: .300 Blackout Capacity: 30 Year introduced: 2016, USA Weight: 68 oz Overall length: 32.5" Status: Active Intended use: Hunting, Home Defense, Precision