These things are perfect on the back end, can they be fit into other bolts? Any other companies make something similar? What were the drawbacks to make this go out of style?
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fall out where? The hole is smaller than the bearing. If it happened to you please tell me about it so I can stop bidding on E bayComment
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Over time, the holes wear out and the bearings come out.Originally posted by pintbuster View Post
If the one you're bidding on looks brand new, and you don't plan on shooting 5 cases a day for a couple of years, you'll be fine.Comment
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So, The Back Blocks that were made for QPBs had a heavy metals insert so as not to oblong the normal hole for a bolt pin....Given time they will screw up a back block from the ball Bering's..LAPCO made the bolts for ANS and used the design on some 32deg bolts the had a Delran tip...Comment
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They are absolutely garbage....
The stainless steel bearings will eventually wear out your aluminum back block which creates a significant wiggle which could lead to if not replaced the bolt actually wearing the breach of your gun.
Anytime I get these in on a gun that is about to be parted the bolt gets thrown right to the scrap bin.Comment
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As usual, I appreciate the advice. Guess I will go back to drilling and tethering the knob to the back of the boltComment
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