making it compatible with most air rifle brands

Invader Gear MP5 trippel Magazine Pouch

there are 3 magazines with space for 12 shots

The rifle also has Hatsan's Quattro trigger system

- Shaped sleeves

Creeper Concepts Hi-Capa HPA Adapter til M4 Mags 111V-1000-S making it compatible with mostBO Manufacture, together with Creeper Concepts, has made this 3D printed HPA Adapter so you can mount M4 magazines in your Hi Capa pistol. It is printed on a special Nylon Sintering Printing (SLS Technology) which is required by FCC, AirQB and SpeedQB. It comes with a US HPA Tap But a pistol magazine is not included, you have to get that and put it on yourself!