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CMMG Radial delayed bolt with standard reciever
Just ordered a bolt and barrel combo as I have some stripper uppers laying around doing nothing. Anyone have any real issues with ejection on a standard reciever? I know they recommend a oversized ejection port for best results. Just looking to do a cheap upper with spare parts and to work with my pistol lower. Gonna get some endo mag conversions with some spare pmags.
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Well just completed an 8.5" upper with a left over stripped reciever, holosun 510 green reticle. Have some endomags and just need to get out to the range to run some rounds through it.
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No personal experience yet, but I'd check the thread over on Brian Enos for info about that. Quite a few guys over there building PCCs with the guard system, and there is lots of good info over there. I do remember at least one person using a standard upper and not having issues, as long as it was the 9mm model, and not the 45. Once again no personal experience, but check over there for sure.
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There was a decent length thread on ar15. Will look for the one on brian enos as I frequent that one as well.
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20190926_205300.jpg
Here it is all finished up. Plan to run some mags throug it after uspsa this sunday.
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Interested to hear your thoughts on the Radial Delayed Bolt- does it/is it= softer shooting than the Blow Back guns?
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A buddy has a blowback colt mag style. Will have to meet up with him to see if there is very much of a difference between the two. As of right now this will be my first 9mm AR and I haven't shot his yet.
There will be a bunch of pcc shooters tomorrow so I will see if I can try a blowback to see the difference.
Last edited by joedirt199; 09-29-19 at 18:40.
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Well didn't get to compare it to a blowback as the one pcc guy in my squad was having issues with both of his rifles, AR9 style and uzi. It ran good and the best I can explain the recoil impulse is kind of spongy. Not sharp but a little bouncy. May try an H buffer instead of standard and see if that helps with the bounce feel. Mags fed good. Did a quick stand up sight in at 20 yards. Definately see the appeal on these.
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Are you using an A5 buffer system? Amphibian has done some great research on this RDB setup...
http://c3junkie.com/?page_id=538
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Was using a standard buffer but threw an H weight in to see how it does tomorrow at the range. Have an H2 as well.
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