I was planning on a Aero M5 build but I bought a new M&P10 instead. With that being said I won't be needing this lpk. It includes everything needed for a Aero M5 lower to include the Aero specific take down and pivot pins, bolt release, and extended length mag relase button. I also have included a 4-40 set screw for the take down pin amd a 10-32 set screw to fill the deep hole of the mag release button. The fcg and grip are from my new M&P10. I'd like $65 shipped PayPal "friends and family" preferred.