DPMS GII AP4 SA .308 Win/7.62 NATO 16" 20+1 AP4 Black stock The GII AP4 is everything you would expect from an improvement to the award winning LRAP4, which was the second MSR to win an NRA Golden Bullseye Award. Which MSR was the first you ask? None other than the DPMS 24 LR308. Lightweight 16" Barrel, AP4 Stock, DPMS carbine length Glacier Guard and MagPul Gen 2 rear sight.