I just had a thought. I was thinking of different systems used to cycle rifles, such as the gas piston on the AK-47 and G-3, the gas return tube system of the AR, the mix of systems on the M-1 and the M-14....
And then it hit me. Why can't full-scale rifles operate off a straight blowback system like the Ruger 10/22? There is nothing to blow back into the reciever, no gas piston to clean - everything goes down the barrel. There are no locking lugs on the 10/22 as far as I know, so why can't the same pronciple be applied to rifles of larger caliber? This would not only eliminate problems in rifles, but in carbines as well - the gas pressures will always be the same.
And another idea hit me - why not have an AR with two large locking lugs rather than one? I'm sure it would be less prone to shearing off, machining the recesses ( or anything else in that area of the rifle ) in the barrel would be easier, and cleaning them would be easier too. I'm also sure that accuracy would not be harmed, and it would create more space for a chunky extractor and spring.
Would not this type of system be extremely reliable, simple to manufacture, and shooter friendly ( after all, this system combined with the in-line construction would bring recoil down to nil )?
Thoughts?