What is a "Ball Detent"

[Corbet]

I was reading about the ULE and it said a angel "ball detent, and a angel "feed tube with angel threads." what exactly are these?

[fire1811]

they are the little "wart" on the side of the gun
it has a spring and a delrin ball in it.
it lets one ball fall into breech and stops the rest
as you shoot the bolt has enough force to push the ball detent in and shoot the ball it resets and repeats

[team_heretix_trey]

"Feed tube with Angel Threads" Not sure. Either can be used on an angel or it can have an angel threaded barrel in it. A "Ball Detent" is a little ball usually on the left side of a gun. When a ball falls into the chamber the ball detent stops it from falling out. But behind the ball is a spring so when the bolt comes forward the ball detent just slides back.

[fire1811]

oh and the feed tube is the part on the top of the body that the hopper sits in

as for the threads that is just the pattern they went with
i belive there is only two threads for feedtubes its either cocker or angel threads they went with angel.