
I do new airsoft launchers. I drew some designs - all sizes chose in photos. These products will have belt loading of shells. All pneumatic details at these launchers the identical.
АГС-40 "Балкан" (6Г27) (AGS-40 "Balkan" 6G27)
real

drawing

Mk 19 drawing - blow forward bolt - bad design


GGDT data


I will use the valve of Camozzi 1/2 inch (inside chamber)

And I started thinking over this project
