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johoevasmatrix

cleaning usp 40

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I have had a usp 40 for toooooo long for it to be now that I am asking this question besides field stripping and cleaning which I do at least after every two times I go to the range, but I am wondering if I should be worried that i have never got to my firing pin. Not sure I can get to it. if I can please explain how and how to clean the iring pin bore. thank you Brent

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You can always shoot an aerosol cleaning agent through the firing pin hole on the breech face till it runs out the back clean. I used to use MicroX before it got too expensive.

Been a while but I believe you could also partially drive out the roll pin/metal roll that's closest to the rear sight (better to have a backup roll pin just in case) to remove the firing pin then push the pin back in when you're done.

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I wouldnt worry about that. You could if its making you crazy. If you're going to have problems, i think it will occur with other parts first. I know you can go at least 15k rounds without dealing with it.

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Coleman   

Good 1-6 vid on youtube for complete disasembly and reasembly. Its not that hard just have to watch each vid a few times and do it step by step, just take your time.

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j0n   

Very easy to knock out the rollpins in the slide. Knock out the one holding the extractor, and clean that out too. I went about 5k rounds before I cleaned mine and saw next to know buildup on the firing pin. The extractor, however, was filthy.

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