Tacfire PK300LPK-7 300 AAC 7.5 PSTL BUILD KIT PK300LPK7. 5inch UNASSEMBLED .300 AAC PISTOL BUILD KIT Specifications for Tacfire PK300LPK-7 300 AAC 7.5 PSTL BUILD KIT PK300LPK7: Manufacturer: TacFire Cartridge: .300 AAC Blackout Package Contents:...