I'm just not going to have something that's blowback operated regardless of caliber/pressure level-only .22s are supposed to be blowback operated. Also the slide is cast zinc-really makes me feel good about the strength. Yes indeed,field stripping them is REAL FUN,trying to hold slide back exactly the right point while knocking the pin out with punch. Lastly due to the material & type of operation 80% of the weight is in the slide,meaning they actually produce accented whipping back & forth as the humongous slide travels. Those are the facts folks. I noticed the only poster promoting them to the point of badmouthing all other guns don't seem to be on the level-time will tell as he posts more. I'm rather suprized someone retired from USN actually trusts his life to that sort of firearm. SOONER OR LATER almost all of them WILL mess up according to what I've seen come into my shop to be repaired or sent back to factory, if you shoot them enough. I refuze to work on them but will send them back to factory.