I was at the range Saturday shooting. I put about 100 rounds through my rifle when the trigger got really hard. It would still fire but was stiff as hell. I had 120 rounds with brass casings, and 40 rounds with steel casings. Didn't load the steel until the last few clips and then I started having issues. Any ideas?

 

is the rifle new first time shooting

 

It had maybee a hundred rounds through it from the previous owner

 

I had a primer blow out and get stuck under my hammer and lock mine up.
Take the upper off, hold your hand on the hammer very slighlty.
Pull the trigger and see what everything is doin.
Called a function check.
Possible a trigger or hammer pin broke.
Ive had that happen a few times.


Take the trigger group apart and inspect it and snap picks

 

Function check

Charge handle
Switch from safe to semi
Pull triger and hold down on trigger
Charge handle again
Let go of trigger should hear a click if so all good

I'm thinkn your bolt is dirty between firing pin and bolt set bolt in some carbon softner or gun oil and clean it up and clean ur triger assembly and oil sounds like little dirt or carbon build up 100 rounds in a ar gets dirty quick

 

Thanks guys. Will do

 

I love Parts and brake cleaner.. blast the lower with that stuff and it blows all the crud out. i use it all the time

 

sell it and buy a colt or bcm problem solved cost the same and loads better