Sig Sauer PMCX5BTAPNB MCX Rattler 5.56x45mm 30+1 5.50″ Black Carbon Steel Barrel, Black Anodized Aluminum Receiver, Black Polymer Grips No Brace

The SIG MCX Rattler was designed from the ground up to be as discrete as possible while retaining all the robust capabilities of the MCX. It features a 5.5″ PDW barrel. Free-floating M-LOK handguards matched with a PDW upper and barrel.