[ARCHIVED THREAD] - pinning bcm comp

Posted: 3/31/2013 5:25:40 PM EDT

i have not yet put my upper together because i am waiting on parts. i have a bcm lightweight 14.5 barrel and a bcm comp. the comp comes pre drilled and with a pin for the install. i attched the flash hider just to see how far i would have to drill. to make the pin flush i will have to drill close to 3/4 of the way into the barrel. I am worried about the amount of room for error. i guess i should just go slowly and drill a little at a time until the pin is flush. does anyone have any pointers on how to do this since i will not be able to see the barrel as i go.

Posted: 3/31/2013 5:35:19 PM EDT

[#1]

I would figure out the wall thicknesses measurement for the barrel where the hole drilled into compensator meets the barrel; I'm guessing its over the threaded portion of the barrel? The pin could possibly just need to be trimmed after install if its protrudes.

Posted: 3/31/2013 5:48:26 PM EDT

[#2]

yes it is over the threads. trimming the pin would probably be the best option. so i wouldnt have to drill very far.

Posted: 3/31/2013 6:25:34 PM EDT

[#3]

Definitely trim the pin. Last thing you want is to go just too far.

Posted: 3/31/2013 6:35:40 PM EDT

[#4]

yeah I do not want to take a chance of ruining the barrel.

Posted: 3/31/2013 7:58:36 PM EDT

[#5]

I sent mine to ADCO.
http://i.imgur.com/ac3Bpg7l.jpg

Posted: 4/1/2013 5:37:43 AM EDT

[#6]

How long did it take adco to get your gun back?

Posted: 4/1/2013 6:11:55 AM EDT

[#7]

Turn around was four days. They are fast, good and inexpensive. Just remember to have a barrel nut and gas block on it when you ship it to them.

[ARCHIVED THREAD] - pinning bcm comp

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[ARCHIVED THREAD] - pinning bcm comp

[ARCHIVED THREAD] - pinning bcm comp