Ruger Forum banner
ar-556 mpr bolt
1-1 of 1 Results
  1. Ruger Semi-Auto
    I just picked up my AR-556 MPR in 450 Bushmaster from my FFL yesterday. I took it apart to clean and lube it today. I got to removing the bolt carrier group and the firing pin retaining pin, no problems. I pushed in the bolt so that I could rotate and remove the cam pin, but the bolt felt...
1-1 of 1 Results
Top