Barrell screw backing out.
My self I took a lock washer. Took a screwdriver and opened it up wide enough the screw would fit threw, yet still small enough to fit in the hole. I have probably shot close to 1,000 rds thru it and has never came loose again. I clean my gun after every shooting and use no loctite except blue on the inner screw to bolt carrier. That is what worked for me!
|