Sig Sauer MPX semi-auto pistol chambered in 9mm. This pistol features an 4.5-inch barrel, M-LOK handguard, full length picatinny rail, ambidextrous controls, manual safety, flat faced trigger, polymer grip, and a picatinny rail for quick pistol brace mounting. This firearm ships in its factory box with one 35-round magazine, owner’s manual, and a lock. The manufacturer part number is MPX-4B-9-NB.