Compatible with Tokyo Marui M4 MWS GBB series.
Compatible with Tokyo Marui MTR-16 GBB series.
Compatible with receiver retrofit kits for Tokyo Marui M4 MWS GBB system.
NOT compatible with ANY OTHER AIRSOFT GBBs.
Requires DIY ability.
● Product Brand : PH+ (TAIWAN)
● Material : Aluminum Alloy, Stainless, Steel, Rubber.
● This product is designed to improve the insufficient stage of adjustment in the original MWS HOP-UP system. It is adjusted with stainless steel screws with unlimited stages for precise adjustment.