Captains1911
1 March 2010, 07:00
This is the mount that clamps to the barrel under the FSB. I attempted to remove it from my Colt 6920 yesterday by tapping one of the 2 roll pins out with a hammer and roll pin punch. I have never attempted to remove one of these but I did install a RRA one on my BCM and it was simple. However, I could not get either of these 2 roll pins on my Colt to even budge, I must have hit each with the hammer and punch at least 50 times with zero movement, even after oiling them, so I gave up.
After my failed attempt, I started thinking, if I was hitting these pins with this much force and they weren't moving, was I possibly over-stressing something else that I shouldn't have been? I don't have a vice, so what I did was separate the upper from the lower, remove the BCG and CH from the upper, and then I sat the upper muzzle up on a piece of wood on the edge of a table with the FA hanging off the edge so that the back of the upper receiver was bearing directly on the piece of wood. I then attempted to punch out one of the pins with the upper in this position by hitting downwards.
The sling mount moves freely under the FSB, so any force acting on the mount from the hammer and punch would translate directly to it, and then down the rest of the upper. Am I being paranoid by thinking I shouldn't have done this? I figured if anything was going to give it would have been either the pins I was hitting or the piece of wood that the upper was bearing on, I just need some assurance that I didn't potentially screw anything up. Thanks for reading my lengthy post.
Also, how the hell do you remove this mount?
http://i38.photobucket.com/albums/e106/Captains1911/temp/DSC00955.jpg
After my failed attempt, I started thinking, if I was hitting these pins with this much force and they weren't moving, was I possibly over-stressing something else that I shouldn't have been? I don't have a vice, so what I did was separate the upper from the lower, remove the BCG and CH from the upper, and then I sat the upper muzzle up on a piece of wood on the edge of a table with the FA hanging off the edge so that the back of the upper receiver was bearing directly on the piece of wood. I then attempted to punch out one of the pins with the upper in this position by hitting downwards.
The sling mount moves freely under the FSB, so any force acting on the mount from the hammer and punch would translate directly to it, and then down the rest of the upper. Am I being paranoid by thinking I shouldn't have done this? I figured if anything was going to give it would have been either the pins I was hitting or the piece of wood that the upper was bearing on, I just need some assurance that I didn't potentially screw anything up. Thanks for reading my lengthy post.
Also, how the hell do you remove this mount?
http://i38.photobucket.com/albums/e106/Captains1911/temp/DSC00955.jpg