1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Cmmg bho

Discussion in 'Rifle Country' started by hapidogbreath, Dec 24, 2011.

  1. hapidogbreath

    hapidogbreath New Member

    May 5, 2009
    I put out some heavy coin for a CMMG upper with the BHOA option and 2 mags. Mags needed to be worked in to even feed and I still can't get the bolt to stay open on the last round. Does anyone out there have any idea how long this takes to break in or did I get a lemon. Have tried it on a DPMS lower and a RUGER.

    Any help would be great!:)

Share This Page