UMAREX Legends MP40 CO2 Powered SMG (Black)
 
CO2 powered Airsoft gun with Blow Back Action.
Comes with Semi and Full Auto Shooting Mode (real MP40 only shoot in full auto).
Full metal receiver with polymer grip.
Comes with folding stock which works like a real MP40.
40 round CO2 magazine is included (insert 2 pcs of CO2 cartridge in the base)
No hop.
This CO2 airsoft's muzzle power is around 380 FPS.