THE GREATEST GUIDE TO SEMI AUTOMATIC RIFLE

I second what WingedMelon mentioned. I've quite a few Holosun optics, which include this a person, and haven't had a difficulty with any of these. I'm essentially selling my Trijicon RMR to receive another a single. The 507 is on par, if not much better, than my DPP.Though Auto Ordnance was selling the Thompson submachine gun to the open market whi