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Posted: 12/12/2012 5:00:24 PM EDT
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I was just wondering if anyone's had experience with ruptured primers from using a .223 fire control group on a 9mm AR with an unramped bolt.
I'm thinking about replacing my RRA 9mm fire control group with an ALG QMS or ACT fire control group. I have a QMS in another AR in .223, which I like. When I test fit the ALG FCG into the 9mm, it seems to function fine. No hang ups, no catching, I don't feel anything wrong, except the hammer strikes are considerably more powerful than the RRA 9mm setup. I'm considering buying a second one for permanent duty in the 9mm. 
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Quoted:
Quoted:
I have thrown my 9mm Upper on my 5.45 dedicated lower with a Wolff Extra Power Hammer spring and i had no problems with damage to primers. Only peripherally related to the original question, but is your bolt ramped or not? It is a Ramped CMMG Bolt. |
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