Chinese M1A clones have standard barrels and fit nicely with the M8 mount. Shake a typical AR and it sounds like something a baby might enjoy teething on. I have had one issue with my Socom when I was trying to install my EBR stock and it turn out to be a slightly bent Op rod. The reason is it is more compact and I don't hardly ever shoot past 200 yards and well I'll just say it, I like how loud it is. Springfield M1A SOCOM 16 Carbine: Gun Review.The M14 has been used in both Iraq and Afghanistan because of its ability to cover distances. 25″ Parkerized carbon steel barrel that is mated to the gas system with a proprietary muzzle brake.