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AFTERMARKET BARREL LOCKUP ON FACTORY PRO CUT SLIDE

so i recently built my first mup1 and i used a sig sauer pro cut 3.6" x compact slide first with an l2d combat barrel but there was too much space between top of barrel and fitting flush with slide, so i got a true precision barrel which fit damn near perfect but functions fine! So is the irregularity i had the norm or the exception with MUP1? or is it a pro cut slide to aftermarket barrel lockup issue with a factory FCU too?

IF ANYONE CAN POST PICS OF AFTERMARKET BARREL FITTING FLUSH WITH PRO CUT SLIDE WITHOUT LCI I WOULD BE FOREVER GRATEFUL!

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Unknown member
Aug 19, 2024

I’m not much help with your particular situation but I do know true precision barrel was definitely tighter on my 365. Not an issue but all manufacturers have a “tolerance” plus all the other “tolerances” on your build I’d say that’s just a normal stacking issue. If it functions fine and passes all safety checks then I’d say your good to go and maybe get your money back from l2d if possible or start another build

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