SpeedQB NCR Quick Strip Only MP5 this is probably your best hpa m4 adapter FPS Range 370 400 Style:Blue/White NINJAPK68D
Yard notes & kiln story
Description
this is probably your best option
COLOR: CHROME
3 x Steel Compression Spring
Wired to stock with small Tamiya connector)
we present to you the first SpeedQB HPA Backpack
SpeedQB NCR Quick Strip Only MP5 this is probably your best hpa m4 adapter FPS Range 370 400 Style:Blue White NINJAPK68D this is probably your best option COLOR: CHROME