The body has almost nothing to try and do with it. It is the lockwork and tolerances. The FA isn't designed to really fantastic tolerances only for giggles. It can be carried out so the guns survive at 65,000psi without shaking on their own to items. This page employs cookies https://socialbuzzfeed.com/story2493411/waffengesch%C3%A4ft-m%C3%BCnchen-an-overview