My big issue with the MN is the safety. It's the most awkward thing I've ever encountered on a military bolt gun. If not for that, I think your idea has a lot of merit. You'd think - with the boatloads of these being sold - that somebody would come up with an after-market, sliding safety, Timney-style, trigger replacement. Then you could buy the full-lenght version, at like $69, and go to town!