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Posted: 5/11/2007 8:36:46 AM EDT
| I want to put on a FF fore end and change my front sight A2 style to a 4rail gas block while im at it. How hard is it to get this lined up square so my front sights wont be off when im done any tricks would be helpful thanks. |
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What method of securing the gas block will be used? Clamp type w/screws, set screw type, or set pin type? I'm assuming it's going to be a clamp type or set screw type. If so you can take the flat side of a level and, if your ff top rail is properly alligned with the upper receiver, angle the level so that it rests on the top rail of the handguard and on the top rail of the gas block, allign the gas block and then tighten. If at first you don't succeed, try again. This is the way I do it and it works fine for me. EDIT: You don't have to use a level. The idea is to use something that perfectly flat and long enough to rest between the front edge of the handguard and the front edge of the gas block at the same time. |
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I would not advise a 4 rail gas block. They are just heavy gimmicks. First what do you want to accomplish? Is it a free float 4 rail tube that you want to install, or a round free float tube with no rails? What kind of barrel (type and length)? How about optics? What is your plan in this regard? Basically what are you building…? Spr, carbine, long range tack driver..? Fill in some of the blanks and ill try to help. |
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