Posted: 7/2/2010 9:40:34 PM EDT
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Hello,
I have an AR-15 with the CMMG piston kit on a 16" barrel, confirmed the ports are lined up and it will not fully extract the round. I am shooting Black Box FMJ Wolf in 7.62x39. Any thoughts on what the problem might be? Thanks. |
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Quoted:
Hello, I have an AR-15 with the CMMG piston kit on a 16" barrel, confirmed the ports are lined up and it will not fully extract the round. I am shooting Black Box FMJ Wolf in 7.62x39. Any thoughts on what the problem might be? Thanks. Since you are running this on 7.62x39 the gas port size needs to be different. Did you specify a different caliber when you ordered. If not, we can give you the proper size to drill out to or you can send it back and we can drill it out. Posted Via AR15.Com Mobile |
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Shoot an email.over to [email protected] and they can get you going. Posted Via AR15.Com Mobile |