I just got two of these, brand new from Bushmaster.
The part is intended to replace the big two screw bolt in the front pivot hole of Colt ARs.
They are slightly undersized, and allow a LOT more play between the upper and lower than the standard part.
The ends are not round at all.
The detent ball sits far enough out of the frame that there is about a tenth of an inch of lateral slop in it.
They will migrate out while firing. It took less than ten rounds to walk it out of the detent. Then the gun began to malfunction.
No big surprise there.
The ball detent is too small to detent effectively.
In short, they are JUNK.
They list at $9.95 each.
The box with two pins was sent UPS COD.
The bill when it got here was $32.40!
So it cost $12.50 in shipping and handling to get them here. Outrageous, even if a $5.00 COD fee is included.
The part is intended to replace the big two screw bolt in the front pivot hole of Colt ARs.
They are slightly undersized, and allow a LOT more play between the upper and lower than the standard part.
The ends are not round at all.
The detent ball sits far enough out of the frame that there is about a tenth of an inch of lateral slop in it.
They will migrate out while firing. It took less than ten rounds to walk it out of the detent. Then the gun began to malfunction.
No big surprise there.
The ball detent is too small to detent effectively.
In short, they are JUNK.
They list at $9.95 each.
The box with two pins was sent UPS COD.
The bill when it got here was $32.40!
So it cost $12.50 in shipping and handling to get them here. Outrageous, even if a $5.00 COD fee is included.