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-   -   Railed gas block problems (http://www.firearmstalk.com/forums/f20/railed-gas-block-problems-70506/)

Tenderribbs 08-16-2012 10:50 PM

Railed gas block problems
 
1 Attachment(s)
Built this retro Ar a few weeks back and I am unable t o get the front sight high enough to get zeroed in, this gas block rail is lower then top rail on the barrel . I cranked the rear all the way down with two clicks from bottom on 3 it's a carry handle. I can't put front sight on top of rail because I went with wood and have no rails I have a flip up sight on the block now and I have the pen just barely threaded in and I'f I go with a longer front pen it's going to get hung up on everything .should I just go ahead and put on a f type front sight? That's really the look I am looking for anyways Thanks for any advice ahead of time .

Attachment 54761

buffalolake 08-16-2012 11:24 PM

They make those rail mounted front sight posts in 2 different sizes, 1 for mounting to a flat top rail and 1 that is about 1/4" higher for mounting on a gas block rail. You need to get the one that is made for the gas block rail for it to work right.

buffalolake 08-16-2012 11:33 PM

Here is an example of the two heights.
http://i626.photobucket.com/albums/t.../IMG_1510R.jpg

Quentin 08-17-2012 01:04 AM

The sight on the right looks like an ArmaLite designed for a low gas block rail. It or one like it should solve your problem. There are flip ups of that height but again make sure the height is right.

Tenderribbs 08-17-2012 01:40 PM

Thanks that's exactly what I was looking for


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