Again wrong period!
A semi auto fire arms harmonics is very important when precision shooting especially when using a 308. For the shooter, the weight and movement in the system is going to exploit any weakness in your fundamentals of marksmanship, especially Trigger Control and Follow Through. If you have a habit of “tapping” your trigger on your bolt gun the gas gun receiver movement will exploit this dramatically.
A semi is designed around the upper and lower together as a unit so it vital for a good fit. The engineers did not design a rifle and as an afterthought throw a lower into the design.
If you want to run a sloppy semi be my guest, however precision shooters feel other wise.
What does .308 have to do with an AR 15?.


















































