The ProWin GBB Speedsoft 112rd magazine is designed to work with G series model 17 GBB pistols and the Umarex Glock 17 series of pistols. The magazine not only holds an exceptionally high amount of rounds but an incredible amount of gas! In addition, this extended magazine will work with the ProWin AR9 conversion kit for the Tokyo Marui M4 MWS, giving you that true extended magazine capacity and PCC (Pistol Caliber Carbine) competition rifle look!

Compatibility:

• Tokyo Marui G Series Model 17 GBB Pistols
• Umarex Glock 17 Series GBB Pistols
• ProWin AR9 Kit for TM M4 MWS GBBRs

Magazine Type:

• Hermetic Type (Hidden Spring)

Includes:

• x1 Prowin Speedsoft 112rds Twin Extension Gas Magazine for Tokyo Marui G17 - Hermetic Type (Gray)
• x1 Allen Key and O-Ring Set