Quote History Originally Posted By linuxgnar:Appreciate the feedback. I already ordered the damn thing and its on the way to my FFL now
What would be a suitable alternative? One of the CMMG radial delayed solutions? The reason I ordered the AR-V is I have a couple scorpions already and prefer those mags over traditional pistol mags in a subgun. I'm not familiar enough with the CMMG options to know if they can be modified to work with a RLL or not.
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Quote History Originally Posted By linuxgnar:Originally Posted By amphibian:
I personally wouldn't run a straight blowback 9mm setup with a RR or RLL.
Appreciate the feedback. I already ordered the damn thing and its on the way to my FFL now
What would be a suitable alternative? One of the CMMG radial delayed solutions? The reason I ordered the AR-V is I have a couple scorpions already and prefer those mags over traditional pistol mags in a subgun. I'm not familiar enough with the CMMG options to know if they can be modified to work with a RLL or not.
The CMMG 'Banshee' originally called the 'Guard' when it first came out uses a bolt carrier similar to a milspec. The tail end is identical to an M16 carrier so no problem to have it milled back. However, the Banshee/Guard destroys ejector springs as I believe the ejector spring is absorbing some of the initial recoil impulse. This also happens on the MEAN Arms bearing delay upper as both systems utilize the same spring loaded ejector found in a typical 556 bolt. This is not an issue in 556 since the bolt is truly locked.
Here is an active thread on the Rimfire section discussing this issue with the CMMG:
https://www.ar15.com/forums/AR-15/Has-the-CMMG-RDB-ejector-spring-issue-been-resolved-by-the-Mk10-spring-/15-781020/ I think someone posted his dying at 300 rounds. In my experience they usually die around 1K rounds.
Here are links on my website discussing my setup:
https://c3junkie.com/?page_id=280 Also my website discussing the ejector spring failures: https://c3junkie.com/?page_id=221
You can see that I am using a custom fixed ejector on my first link but even that has it's own issues as the bolt eventually cracked at around 25K rounds.
All that said, I am working on 2 different setups right now to finally resolve these issues for people that want a smooth 9mm SMG setup for the M16 (RR, RDIAS and RLL).
The first setup ran perfectly. Ran it at the last SMG match last weekend and a couple friends used it for a few bays. Approximately 1K rounds through it with only 1 possible malfunction, I say possible because the guy was using his reloads and the round didn't go off. He ejected the round and didn't recover it so it is unknown if he had a missing / sideways or upside down primer.
I was planning on sharing the details once the 2nd configuration is done but I'm waiting on parts to start the 2nd configuration. I am hoping to share the details in less than 30 days assuming I get the parts and also have time to do some testing of at least 1K rounds. Again taking to SMG match, first Sunday of the month.