Triple lapped, ceramic coated AISI 416R stainless steel match threaded 5/8x24 barrel. Right hand 1:10 rifling twist. 150-175 grain ammunition - recommended 168. Flash suppressor. Quad Picatinny rail handguard. Forged flattop upper receiver with Picatinny rail and laser engraved rail numbering 7175-T74 aluminum. 7175-t73 aluminum (forged) lower receiver. National Match two stage trigger - 1st stage 2.5 pounds - 2nd stage 4.5-5 pounds.