by Bmt85 » Wed Jan 01, 2020 10:37 am
To start, whenever you test fire a new build, always load just 1 round in the mag, then charge and fire. Do this a few times to check for bolt hold open, proper cycling, ejection pattern, and check that trigger works properly (don't need a full auto situation).
What is your build? more info the better.
With your rifle so far, did you notice the ejection pattern?
Does the bolt go back all the way, or is something impeding it?
Do you have heavier buffer's to test?
Did you check the gas block for proper alignment?
Is there something obstructing the gas port?
Is the gas tube properly installed?
Is the bolt catch actually catching the follower of the mag?
I would install a new standard carbine spring.