huggytree Posted December 9, 2019 Report Share Posted December 9, 2019 playing around trying to tweak keystone mags...i noticed bullets hung up a bit below the guns feedramp...i spent a few mins with a file and then 1000,2000 grit sandpaper...polished the feedramp....didnt get too major with it, just took a tiny bit off....bullets do feed better, but now the bolt locks up and wont unlock...on an empty mag it unlocks easy, but if you put a few bullets in the mag the bolt will not unlock without extreme force...with 20-30 rounds its locked up tight...no matter what it wont unlock...the bolt does not touch the part i filed/sanded...so i dont know what else i did ??? did i bump or knock something else i should look at...ive had it apart multiple times, cleaned/oiled it any advice before i ship it off to a gun smith? Link to comment Share on other sites More sharing options...
huggytree Posted December 9, 2019 Author Report Share Posted December 9, 2019 (edited) swapped action bars and it went away...i think i tweaked it trying to put the gun back together...still learning how to assemble...i didnt have the action bar fully seated on the bolt and i tried pounding in the mag well pins.... Edited December 9, 2019 by huggytree Link to comment Share on other sites More sharing options...
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