G&P 39 Rd Magpul Gas Blowback Magazine for WA / G&P M4 GBB

G&P 39 Rd Magpul Gas Blowback Magazine for WA / G&P M4 GBB Polymer Construction 39 Rounds Loading Capacity Gas Magazine P-Mag Style Suitable For WA/ G&P M4 Series Airsoft Gas Blow Back GBB Rifle Also fits Inokatsu GBB M4 For 6mm Plastic Bullet only Best accompanied with Plastic Bullet Loading Too or Speed Loader