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Posted: 3/5/2010 5:21:40 AM EDT
| I'm ready to jump into a free float rail on my AR(thanks to the guides here) but I am wondering about my gas block. The current block I have is a 4 rail that's simply clamped on the barrel. The LaRue low profile gas block needs the divots left on the bottom of the barrel from a standard FSB. With a flashlight, I can see that I don't have such divots. Is that simply an indentation I need to make with a drill bit or it is more complicated than that? It seems like I can just align the new gas block, put a couple of marks on the barrel using the screw holes from the block, and divot the barrel from those marks???? |
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It's that simple. Use a 9/64" bit the depth of the rounded portion of the bit's tip.
Here is a thread with some pictures. |
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