Short stroke and you loose the slide stop though. The cycle is easily quick enough for skirmish without short stroke. Tracer is a gimmick and gives away your position easier. Also adding suppressors to gbbp can slow and even stop the cycle unless you have one of those little light weight ones. Little trick I always did was keep an eye out for nice high-end builds fs with parts I liked on , cheaper than buying new parts separately at the right price. I would then build 2 guns or just a slide and have a lower for spares. One for cold running using the original abs slide and the other metal. This said the 50rnd mag will keep it running better.