Armory Sponsor
Posted: 10/29/2006 2:35:49 PM EDT
|
I have a RDIAS and a 9mm set up with a Rock River upper and bolt. I notice that every so often the trip on the sear smacks the area of the bolt carrier around the rear of the firing pin (where the hammer gets cocked).I locked the action up pretty good the last time I shot it. It scared me, I thought that I broke the RDIAS. The bolt was stuck about half way back and would not let loose. In comparing a regular 5.56 bolt carrier I notice that the area I am referring to has a slope cut into it, but the 9mm bolt doesn't have it. I checked a Colt 9mm bolt as well, and it matched the Rock River to a tee. I was under the impression that all 9mm bolts are full auto bolts. Am I correct? If I am I figure that the trip is a little over sized and needs to be fitted a little, but would rather not go to work it because “you always work on the less expensive part” and also it works so well in a 5.56 set up. I don't wasn't to sacrifice the 5.56 reliability to get a 9mm running. I am wondering if the bolt could be worked on to relieve the tight fit? It dose not look to be that critical of a area that a little contouring would hurt it. But then again, if I was sure of that I would not be asking. So I am looking for any suggestions or insight that you all may have. If a pic will help I could maybe get NewARguy to post one for me. Thanks for the help, Rob |
From what you have described, you need to get your RRA bolt ramped. For some strange reason, the Colt pattern bolts are not ramped and cause problems especially in full auto firearms. Go to M60 Joe for some more info, plus he performs the service and is very quick. |
Armory Sponsor