TAPP Airsoft Tapp M4 Adapter for GTP9 & SMC-9
The Tapp M4 Modular Adapter converts your traditional gas airsoft gun to use HPA and accept standard M4 AEG magazines (super-feed mags recommended).
Modular design allows lower to be changed to different lowers. This makes the adapter interchangeable between M4, ARP, Shotgun Shell, etc.
Gas magazine included and pre-installed with single stack mod to allow faster BB flow.
Friction-less BB stop allows smoother feeding and prevents BB loss while reloading.