Primary AirsoftHi-Capa HPA M4 Adapter GEN4 for ALL Mags

The New GEN 4 Adapter for Hi-capa gives you all features like before with one difference.

These adapters can be used for all below magazines now : 

• Tokyo Marui Mags (4.3 & 5.1)
• WE Mags 5.1
• AW mags 5.1
• KJWorks/SSP1 mags

Note : NOT compatible with

• G&G Hi-capa mags
• WE 4.3 Hi-capa mags