Steel durable cylinder is required in case of any upgrade. Stock cylinder is made of aluminium and weak. It is easy to damage it with stronger upgrade spring. Our AirsoftPro steel cylinder was sucessfully tested on the strongest springs.

This model is suitable for:

• Well MB4404
• Well MB4405
• Well MB4410
• Well MB4411
• Well MB4412

Not suitable for Well Well MB4401,02,03,06,07,08,09 a Marui AWS.

Action Army was founded in Taiwan in 2010. It focuses on offering products such like airsoft sniper rifles, hi-precision inner barrels, AEG motors and gears, hop-up rubbers, GBB valves, BB’s and many more. Their main goal is to provide customer with high Taiwan quality in affordable price. If you are looking for great upgrade parts for your replica without paying a small fortune – Action Army

VSR10/T10 Receiver Spacer Action Army

Action Army was founded in Taiwan in 2010. It focuses on offering products such like airsoft sniper rifles, hi-precision inner barrels, AEG motors and gears, hop-up rubbers, GBB valves, BB’s and many more. Their main goal is to provide customer with high Taiwan quality in affordable price. If you are looking for great upgrade parts for your replica without paying a small fortune – Action Army