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I just finished putting together a Palmetto State dedicated 9mm Colt Lower. When I tried to put it together with my upper, it would not go together. I finally was able to determine that the bolt is hitting on the base of the feed ramp of the lower, not allowing the upper and lower to come together all the way. I've used this upper and bolt with another lower utilizing a mag block insert so I feel like the feed ramp on the PSA lower just sits up too high, but I can't be sure.
I'm not sure what to do now? Do I remove material from the top of the feed ramp? Should I remove material from the bottom of the bolt? A little from each? Potential problems from either?
Any other ideas? I appreciate any help or insight anyone can provide...
Thank You!
I'm not sure what to do now? Do I remove material from the top of the feed ramp? Should I remove material from the bottom of the bolt? A little from each? Potential problems from either?
Any other ideas? I appreciate any help or insight anyone can provide...
Thank You!