10-24-2014, 07:27 PM
Bill, it appears you've misunderstood the reason for a Six8-type receiver.
It is not for increased cartridge OAL. It is to enable use of P-Mags, which cannot be done with the standard AR15 mag well.
It is not for increased cartridge OAL. It is to enable use of P-Mags, which cannot be done with the standard AR15 mag well.
