Aero Precision model M5 forged aluminum lower receiver
with our enhanced lower
parts kit and a 308 six position buttstock kit. LR-308 pattern dimensions and coating ensure the highest
quality and correct component interface. This is the LR-308/DPMS pattern and will work with DPMS pattern upper receivers. For absolute best performance and fit, we highly recommend mating with an Aero Precision M5 upper receiver. Will not work with Rock River or Armalite pattern uppers. Takes SR-25/DPMS style magazines.