This POF P-415 Gen 4 415 rifle has a match grade 18" deep fluted barrel, 11" modular rail, black anodized finish, E² dual-extraction chamber technology, corrosion resistant gas piston system, chrome plated bolt, POF-USA Modular Railed Receiver™: free-floating monolithic rail system, integrated oversized trigger guard, integrated ambidextrous bolt release, bolt catch, and magazine release, ambidextrous selector switch, nylon upper tensioning screws, KNS precision anti-walk trigger pins, Magpul pistol grip, and POF-USA free-floating modular "M" rail aluminum handguard.