SHS M4 Hopup Chamber Parts
Over time parts wear down, or have the misfortune of breaking all of a sudden. Sometimes you just get unlucky and lose an integral piece. When this happens to your hop up chamber, normally that means you have to replace the whole thing. However if you have an M4 hop up chamber, then that is no longer the case!
SHS have released a complete set of hop up chamber parts. In the packet you receive the cogs, adjustment arm, spare hop up rubber, springs, c-clips and barrel clamp. Everything you need to get your defunct hop up back in action