Posted: 10/4/2021 4:38:24 PM EDT
[Last Edit: jhoffman]
I have several AR rifles all work 99.9% with my RDIAS in 5.56mm
HOWEVER... when I try to use my CMMG .22 conversion (with the trip and anti-bounce weight) it only works in ONE of my ARs.
Apparently, the DIAS is holding the hammer rearward and not releasing it as the bolt carrier moves forward, resulting in NO semi or full auto function.
I have tried swapping hammers, uppers, etc. Still only the one gun functions properly
Anyone else experienced this problem?
There is another set of bounce weights that you can tune by insert size.
Someone probably remembers the link and manufacturer.
When you pull the cocking handle to the rear and let it go, it cocks the hammer but the DIAS holds the hammer from dropping when you pull the trigger in semi or full auto.
It won't cycle manually, it's not an ammo problem.
In other words, when cocking the rifle the DIAS holds the hammer back and the only way it will release it is to tilt the upper off. Pulling the trigger won't release the hammer.
Apparently, the CMMG .22 bolt carrier trip isn't hitting the lever on the DIAS, but again, removing the .22 conversion and reinstalling the 5.56 bolt carrier it works perfectly firing 5.56.
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