filmguynepa Posted October 18, 2010 Share Posted October 18, 2010 I just recently purchased the MR1 and test fired it today using Federal 223 55 grain rounds. After about 70 rounds I noticed shell casing marks on the upper receiver at the rear of the bolt. Is this normal? Quote Link to comment Share on other sites More sharing options...
cody6.0 Posted October 18, 2010 Share Posted October 18, 2010 All three of mine do/done this as there is no case deflector. If they bother you just let some Hoppes No.9 sit on them for a minute or two and most wipe right off. Quote Link to comment Share on other sites More sharing options...
filmguynepa Posted October 18, 2010 Author Share Posted October 18, 2010 Thanks for the reply. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.