GHK M4 GBBR AIRSOFT (NAVY SEAL, KEYMOD MOD1)

This is GHK M4 Keymod MOD1 V2 Navy Seal. Keymod Rail system. Gas efficient magazines. Steel bolt, barrel, and control group, and aluminum receiver and CNC RIS. Modified negative pressure floating valve blowback system. Includes GHK 40Rnd magazine. Enhanced and improved longevity on bolt lock. Magnetic bolt catch Able to Take CO2 Magazines This product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.