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Posted: 8/19/2006 11:50:24 AM EDT
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I know there's a thread on removing and replacing the front sight base but my question is: On a scale of 1 to 10, how difficult is it? I'm wanting to put on a flip-up and want to do the work myself. I'm just worried I'm gonna screw up the gas system. Is there anything I need to pay special attention to? Are there any screw-ups that you made that were difficult to repair? |
One a scale of 1 (easy) to 10 (hard) removing the FSB ranges from a 3 to a 9 I'd say. On some barrels, those pins pop right off. On some (Stag Arms and some Bushmasters) they are damned near welded in place and can be holy hell to knock out. Re-installing the FSB is a 1 in all cases. You cannot screw up your gas system... so take that off the concern list. |
Yes - which is why permanently attached muzzle devices are such a pain. You only other option is to cut the FSB off with a dremel, taking extreme care not to damage the barrel in the process, and replace the FSB with a two piece gas block. |
Don't mean to hijack the thread, but this is in the same catagory. How is the front handguard cap attached to the FSB? I just got a new rifle, and the front handgurd cap has quite a bit of back and forth play. This is the first time I've seen this on an AR. I guess I'll have to replace the cap, and I was wondering how it was attached to FSB. Thanks |
The cap is not attached to the FSB at all, it's simply pressed against the shelf by the FSB itself. Remove the FSB pins and you can spin the cap around. If the cap is not tight, then you'll have to shim it behind the FSB. The FSB is not adjustable unless you replace it with a clamp-on unit or a gas block with set screws. |
Thanks for the info... one last question. Does anyone make shims for this paticular application, or should I just create some myself? I know this slight "wiggle" doesen't hurt anything as everything else is solid. It's just one of life's little annoyances. |
By "shim" I don't mean a contentional washer, I just mean something to take up the extra space back there. Loctite is your best option for this sort of thing as the space you need to recover is likely very small, too small for anything solid. Just a little drop of blue along the shelf there, then throw on the cap and get the FSB pinned back in place quickly. Problem should go away. Just make sure your cap is aligned properly before the Loctite dries. |
Gotcha... thanks again for the info and help. |
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