Does anyone know how Oly-Arms made their pistols without a buffer tube? Is it possible to apply the same concept to any other AR lower? What all is invovled (special bolt/carrier, whole new upper...)? I've never been a fan of the buffer tube hanging out on the back end of AR pistols so if I could build one without it would be nice.
Thanks.
PS Those of you who own one of these do you have the same failures that pistol owners with the short "pistol" buffer tube do?