>>40364308>Could lever delay like in FAMAS be scaled down to handguns?
yeah probably, but it likely wouldn't be as compact as a modern handgun action. Maybe with some fuckery and a transfer bar, the delaying lever could be moved ahead of the breechface? would be kind of cool to see the lever sticking out on either side of the slide, of course then it'd get dirty.>What is the simplest/most effective delay system, other than adding mass?
Tilting barrel short recoil has been the standard for a century now for good reason. It's elegant and compact. Almost all modern pistols are either short recoil operated or straight blowback. Mechanically delayed blowback is almost unheard of. there was the P9s, I guess, and the very unusual Chinese QX-04 with it's funky rotary barrel delayed blowback system.
Gas delayed blowback like on the Steyr GB and HK P7 seems to work fine and there seems to be some renewed interest in the idea these days.
But yeah, not much reason to use delayed blowback. Short recoil is less finicky and is and actual locked-breech action with positive extraction, so no need for chamber fluting and shit.