Page 3 of 3 FirstFirst 123
Results 21 to 24 of 24

Thread: Shave FSB or replace?

  1. #21
    Join Date
    May 2009
    Location
    Ohio
    Posts
    757
    Feedback Score
    47 (100%)
    Quote Originally Posted by motorwerks View Post
    crazy I didn't even think it was possible. I would just set screw them, I have 2 that are set screwed and I have NEVER had a problem with them...... its cheap and easy.
    I had problems with a clamp-on gas block rotating in the past. I just needed that extra insurance to give me peace of mind.
    Last edited by William B.; 07-28-10 at 08:27.
    Owner/Instructor at Resolute Response
    Assistant Instructor at Protective Shooting Concepts

  2. #22
    Join Date
    Jan 2007
    Location
    Minnesota
    Posts
    162
    Feedback Score
    0
    Quote Originally Posted by Colt LE6920 View Post
    I had problems with a clamp-on gas block rotating in the past. I just needed that extra insurance to give me peace of mind.

    The pin hole for the gas block will be ahead of the rear FSB pin hole. You will end up with 3 pin grooves on the barrel.

    Adco and Rainier do pinning.

    Rainier and Bravo sell my jig for drilling Vltor blocks for pins.

  3. #23
    Join Date
    Dec 2006
    Posts
    399
    Feedback Score
    1 (100%)
    Quote Originally Posted by motorwerks View Post
    heres what I did.......

    when I bought my rail I went with a low profile gas block, then later when I decided I wanted to run a different barrel. I pinned the FSB back on and sold it off to a friend that needed a pinned block. I say clamp on a new one and throw the stock one in a drawer in case you need it later for whatever reason...
    Clamp on FSB's are generally inferior to pinned ones. Set screwed one too for that matter.

    In the end the application of the weapon should be the deciding factor.

  4. #24
    Join Date
    Nov 2008
    Posts
    414
    Feedback Score
    2 (100%)
    Shave it. Here's a few pics I took while I did one.













    Picture of another shaved FSB done on another barrel.


    All you need is a dremel cutoff wheel and a round grinding wheel, either green or orange. Cut the front sight tower, bayonet lug and sling swivels off and do some light sanding with 80gt to take some machine marks off. Work up to 120gt. Take the round wheel and round off where the barrel goes and the gas block portion of the FSB. This makes the profile of the gas block something like a pear---you can see at the muzzle picture. It will take you about an hour to do this operation for the first one. Once you've gotten a hang of it you'll never want to spend $$$ on a low profile gas block because the barrel usually comes witha pinned FSB. It's extremely secure and will be the last thing you have to think about on your rifle. Get your choice of rail system over it and forget about it. Good luck on your quest. It's fun to make sparks fly a little bit every once in a while.
    30 caliber junkie.

    God Bless America.

Page 3 of 3 FirstFirst 123

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •