41magsnub
Member
new self built ar-15 lower with factory assembled upper:
Tactical Innovations lower
DPMS lower parts kit
BCM M4 stock with carbine buffer and spring
BCM light weight middy upper + daniel defense BCG
With an empty magazine inserted the bolt hold back is rock solid, could not work better. The only way to make it release is with the button.
Without a magazine, it takes a few tries to get it to catch and even the slightest shake of the rifle will release it. It is not like every other AR-15 and M16 I've handled where they hold pretty well but a good slap to the butt stock will release it. This one it just takes jiggling the rifle a bit.
What I have tried:
Swapped BCG's with another AR-15, same issue.
Swapped buffers and springs with another carbine length Stag AR-15, same problem
Swapped the uppers between the two AR-15's. When swapped both work as expected.
Before I go punching out roll pins and finding another bolt catch and springs.. any other ideas? I'm not sure why the problem isn't still there with a different upper/bolt on it yet the problem doesn't then occur on the other lower with the upper from this rifle.
Tactical Innovations lower
DPMS lower parts kit
BCM M4 stock with carbine buffer and spring
BCM light weight middy upper + daniel defense BCG
With an empty magazine inserted the bolt hold back is rock solid, could not work better. The only way to make it release is with the button.
Without a magazine, it takes a few tries to get it to catch and even the slightest shake of the rifle will release it. It is not like every other AR-15 and M16 I've handled where they hold pretty well but a good slap to the butt stock will release it. This one it just takes jiggling the rifle a bit.
What I have tried:
Swapped BCG's with another AR-15, same issue.
Swapped buffers and springs with another carbine length Stag AR-15, same problem
Swapped the uppers between the two AR-15's. When swapped both work as expected.
Before I go punching out roll pins and finding another bolt catch and springs.. any other ideas? I'm not sure why the problem isn't still there with a different upper/bolt on it yet the problem doesn't then occur on the other lower with the upper from this rifle.
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