The SI DEFENSE GENERATION II STRIPPED 308 UPPER RECEIVER is 100 percent DPMS LR-308 parts compatible. The picatinney rail is of correct height opposed to the new DPMS height. I haven’t a clue what the side picatinney rail is for. This is the upper in use.
SI DEFENSE GENERATION II STRIPPED 308 UPPER
SI DEFENSE GENERATION II STRIPPED 308 UPPER
