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Posted: 7/28/2012 4:31:10 AM EDT
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I have a Colt 6720 that I am in the process of getting a suppressor for. Obviously, I want to make sure that everything is good to go. I know that Steve at Adco does excellent work, and I am about to send him some other items to work on. If at all possible, I really do not want to send this one in. My last can went on a Noveske barrel, so I was not concerned with it. I guess if it was off, the threads could be corrected. I would not mind cutting it down to 14.5 and pinning it, but since it is the 6720 model, I do not think this can be done with the LW barrels.
I know this comes up from time to time. I was just wondering how close Colt barrels normally are. I am not overly worried about a small POI shift. Most rounds will be fired under 50 yards anyway. Any advice would be helpful. Thanks, Adam |
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The vast majority are concentric enough to mount suppressors no problem, but any OEM can have a lemon in a batch or two.
Visually inspect it with the suppressor mounted, if it looks off any at all, send it to a pro (ADCO) for verification or a fix. Only way to really know is to check them individually. |
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You can check it visually with a dowel rod that fits the bore without too much wobble.
Mount the suppressor, slide the dowel rod down through it and well into the bore, look to see of the rod is pressed against the suppressor at all. It is important that the dowel rod be straight. If the threads are not concentric, it will be fairly apparent. |
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That seems like it would work pretty well. Here is another question. I know you normally do not want to cut down an LW barrel such as the one on my 6720. That being said, if sent to a good shop, such as ADCO, could it be cut to 14.5" and pinned. I am going to put a breakout on it for my M4-2000, and would love to shorten it a bit. Not sure if even they could do it without the shoulder.
Thanks, Adam |
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