Hi all - thanks for reading this. I built an AR lower on a S&W stripped lower with one of Rock River's fine two-stage triggers. I am having a very peculiar and interesting issue.
On several occasions, the first pull of trigger (no matter how hard) resulted in a very quiet *click* followed by two seconds of nothing and then firing. Usually the remainder of the rounds were fine. You can imagine my frustration at this! It has been very difficult to replicate the problem; it typically happens only after the rifle has been sitting for at least ten minutes.
Well, I have isolated the problem to the lower itself. If I put my hand over the cocked hammer (to guard it from slamming) and pull the trigger, the hammer will not release if there is any downward pressure on the hammer - the same situation as described above happens. With my storebought RRA rifle, any amount of downward pressure on the hammer doesn't seem to matter and the hammer releases regardless.
All the parts are new; is there an easy place I could remove some metal and prevent this from happening?
Many thanks.
On several occasions, the first pull of trigger (no matter how hard) resulted in a very quiet *click* followed by two seconds of nothing and then firing. Usually the remainder of the rounds were fine. You can imagine my frustration at this! It has been very difficult to replicate the problem; it typically happens only after the rifle has been sitting for at least ten minutes.
Well, I have isolated the problem to the lower itself. If I put my hand over the cocked hammer (to guard it from slamming) and pull the trigger, the hammer will not release if there is any downward pressure on the hammer - the same situation as described above happens. With my storebought RRA rifle, any amount of downward pressure on the hammer doesn't seem to matter and the hammer releases regardless.
All the parts are new; is there an easy place I could remove some metal and prevent this from happening?
Many thanks.