Angryrhyno
Members
- Jul 5, 2010
- 3
- 0
Hi everybody, I'm putting an m4 long barrel on my old tm mp5 to give it a little more range and acuracy. M4 barrel fits, just need to find a nice "silencer" to cover the excess length sticking out the muzzle. Does anyone know if i need to uprate the piston/spring etc when i do this to make up for the longer barrel length? Let me know please. Cheers. R