Originally Posted by
okie
I could see it kind of sort of being that bump fire is maybe PART of the problem. My guess is that the hammer is often being caught not fully engaged with the sear surface and that a slight breeze could pull the trigger at that point.
Bump fire in my mind also doesn't really offer much explanation for the failure to reset, which is probably about every five rounds now. The issue began as occasional bursts, which became frequent, then the bursts began giving way to failures to reset, which are now the dominant problem.
In fact, with 5.56, failure to reset is now the only problem. I have not been able to get 5.56 to fire a burst like with 223.
I'm also not satisfied that bump fire could produce the rate of fire this thing is putting out, or the regular rate of fire. Bump fire, even when intentional, has that characteristic variable rate of fire. This is an extremely fast rate of fire, and has a very regular cadence.
I can get the rifle to bump fire if I hold it loosely and don't use the stock, but it has that characteristic variable rate of fire, and is slower than the random bursts I experience.
So it's really following the pattern of a worn out trigger that's extremely typical. Bursts that grow in frequency and duration, that eventually give way to only failures to reset within a few hundred rounds. Issue is, this trigger is practically brand new.
It's a mystery to me, so it's going back to the manufacturer, and it will be replaced with a milspec trigger that I've already ordered. I have one, or several lol, in my parts bins somewhere but finding it/them would be a major headache at this point, so I just ordered a new Colt trigger from Armsunlimited. Not looking forward to the grittiness, but I'm 99.9999% positive it's going to solve the issue and return my gun to its former glory.
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