Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
3/6/2009 7:49:00 AM EDT
Do any of these work well, or would it be better to go with a dedicated GP upper entirely?

And if they do work well, which conversions have the least problems such as carrier tilt or wear on parts?
AR Sponsor