Fri Oct 17, 2008 8:39 pm
well, undoubtedly, the non blowbacks have a much higher gas efficiency than the blowbacks, no gas is being wasted on pulling the slide back to rechamber a round, if what i've read is correct (from several sources), you get roughly three times as many shots per charge of gas in a non blowback, but the drop in power is very gradual and by the end of it, the last few rounds will fire like a 20 dollar springer, not a big problem though if you ask me. the trigger pull will also be a lot heavier on a non blowback. also, generally the fps of non blowbacks are higher, cause all of the gas is focused on sending the bb out, instead of recocking it. the feeling of a blowback pistol is brilliant, but for those who prefer a more function over form gun, the non blowback is probably the more efficient way to go. but not every decision made in airsoft is based on efficiency, now is it? 
