[ARCHIVED THREAD] - FSB is loose

Posted: 8/16/2008 12:40:50 PM EDT

I was cleaning my AR and noticed the FSB is loose, It wiggles sideways about 1/16 inch. The pins had worked out a bit, I punched them back in but they were way too easy to punch back and ist still wiggles side to side. Are there over sized pins or maybe a nut and bolt that I can use to tighten it back up. I also noticed while I was cleaning the outside of the barrel, that it had powder residue around the area of the FSB.

Posted: 9/13/2008 10:24:14 AM EDT

[#1]

height=8

Quoted:
I was cleaning my AR and noticed the FSB is loose, It wiggles sideways about 1/16 inch. The pins had worked out a bit, I punched them back in but they were way too easy to punch back and ist still wiggles side to side. Are there over sized pins or maybe a nut and bolt that I can use to tighten it back up. I also noticed while I was cleaning the outside of the barrel, that it had powder residue around the area of the FSB.

I'm having the same problem. Any help/advice would be appreciated....

Posted: 9/13/2008 11:08:21 AM EDT

[#2]

MidwayUSA sells an oversize pin and reamer if required.

stumo

Posted: 9/15/2008 10:01:46 AM EDT

[#3]

what type of gun?

Posted: 9/15/2008 10:44:12 AM EDT

[#4]

tap out one of the pins and measure it or the hole. Buy two numbered drill bits that are .003" oversized, cut off the shafts, and press them in.

a #30 drill bit will give you a +/- .0035" interference fit in a 1/8" hole.

Posted: 9/15/2008 12:15:57 PM EDT

[#5]

Sorry I hadn't check this thread in a while. I ended measuring one of the pins and it turned out they weren't tapered. I replaced them with tapered pins from DPMS and all is fine now.

[ARCHIVED THREAD] - FSB is loose

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[ARCHIVED THREAD] - FSB is loose

[ARCHIVED THREAD] - FSB is loose