Retested a PSA 10.5" 1 in 7 twist nitrided 5.56 bbl that gave erratic functioning and accuracy results previously when in a Black Sheep Tactical upper. I installed the bbl in a Bear Creek side charger upper yesterday. Night and day difference. No more malfunctions. Previously poor accuracy loads now shoot fine. Happy!
When the bcd and charging handle is in place in the Black Sheep upper, something is causing them to bind. Multiple bcg's and charging handles and 2 different bbls have been tried. Hmmm could this be why they had a sale and then closed their receiver making business?
When the bcd and charging handle is in place in the Black Sheep upper, something is causing them to bind. Multiple bcg's and charging handles and 2 different bbls have been tried. Hmmm could this be why they had a sale and then closed their receiver making business?