Page 2 of 5 FirstFirst 1234 ... LastLast
Results 11 to 20 of 49

Thread: Building an upper

  1. #11
    Join Date
    Jul 2010
    Posts
    5,411
    Feedback Score
    43 (100%)
    Quote Originally Posted by 556Cliff View Post
    The Reaction Rod sucks, I would not buy one... They break index pins all the time.

    Everyone here will disagree me but that's okay.
    How is that even possible? The Reaction rod’s splines secure the barrel extension from turning. There is no turning force to pass through the index pin into the receiver.

  2. #12
    Join Date
    Feb 2008
    Location
    Washington
    Posts
    772
    Feedback Score
    0
    Quote Originally Posted by titsonritz View Post
    How is that even possible? The Reaction rod’s splines secure the barrel extension from turning. There is no turning force to pass through the index pin into the receiver.
    The torque force doesn't pass through the index pin into the receiver, it passes through the receiver into index pin.

  3. #13
    Join Date
    Jul 2010
    Posts
    5,411
    Feedback Score
    43 (100%)
    Quote Originally Posted by 556Cliff View Post
    The torque force doesn't pass through the index pin into the receiver, it passes through the receiver into index pin.
    Sure it does, with a vise block but not a Reaction Rod.

  4. #14
    Join Date
    Feb 2008
    Location
    Washington
    Posts
    772
    Feedback Score
    0
    Quote Originally Posted by titsonritz View Post
    Sure it does, with a vise block but not a Reaction Rod.
    That is correct. Though I was only describing what the torque is transferred through when using the Reaction Rod.
    Last edited by 556Cliff; 11-02-15 at 16:57.

  5. #15
    Join Date
    Oct 2012
    Posts
    4,275
    Feedback Score
    10 (92%)
    This will be good. A classic chicken or egg pissing match! I am on the RR or BEV side for R&R of the barrel nut. Bets are off for a stuck muzzle device. Ask me how I know.

  6. #16
    Join Date
    Apr 2010
    Location
    McKinney, TX
    Posts
    3,253
    Feedback Score
    22 (100%)
    Quote Originally Posted by 556Cliff View Post
    The Reaction Rod sucks, I would not buy one... They break index pins all the time.

    Everyone here will disagree with me but that's okay.
    Where are the reports of all these pins breaking? I would love to read those for myself.
    Steve

  7. #17
    Join Date
    Feb 2008
    Location
    Washington
    Posts
    772
    Feedback Score
    0
    Quote Originally Posted by SteveL View Post
    Where are the reports of all these pins breaking? I would love to read those for myself.
    Most of them were posted about over on TOS, you can find a few threads by searching Google but a lot of the earlier posts are nearly impossible to find.

    ARFCOM is much more divided about the use of the Reaction Rod than this forum is.

  8. #18
    Join Date
    Mar 2011
    Location
    Mid-West, USA
    Posts
    2,303
    Feedback Score
    55 (100%)
    OP- I've been very happy with ALG's rails. Sounds like you are building a fast handling upper. I went with the BEV block based on price. The BEV block and ALG's rails have worked well for all four uppers I've build. While I'm not married to the BEV block by any means, I'd CERTAINLY do the ALG rail again. I don't hang anything more than sights and a light off my mid-length carbine, and I don't hang anything at all off my spr, so ALG's rails have been a home run. I don't honesty know if there's a different rail I'd like more for the direction I went with, and it was nice not having to buy a torque wrench.

  9. #19
    Join Date
    Apr 2012
    Posts
    499
    Feedback Score
    6 (100%)
    OP, I just built much the same upper as you (BA 14.7" pencil bbl and shaved FSB) and the ALG V2 rail has to be the cleanest handguard around. I'm seriously thinking about pulling a brand new SLR off of my pistol built and swapping it out.

    I borrowed a buddy's Wheeler action vice to do the build. Worked well, with no marring (but I'd put some index card in there next time just for cheap insurance). I found that a little anti-seize grease on the nut goes a long way.


    Sent from 80ms in the future
    Much peace
    Jimmy

  10. #20
    Join Date
    Jan 2010
    Location
    The Left Coast
    Posts
    1,301
    Feedback Score
    2 (100%)
    Quote Originally Posted by ncshooter18 View Post
    I am interested in building the upper for my next rifle so I can get the handguard I want. I have a list of parts, any suggestions or experience with these parts is welcome. Also what vice blocks are you guys using to secure your uppers?

    Aero assembled upper (FA and dust cover installed)
    Faxon Firearms 16" pencil midlength barrel with pinned low pro gas block
    ALG EMR v2 MLOK

    I am trying to keep this from being really expensive. Does these parts look good to you guys?
    Looks fine, but I don't see a BCG which is the heart of an AR. Don't go cheap with the BCG. The BCG has more to do with the reliability of your rifle than ANYTHING except for magazine.

    I guess you have already had the gas block pinned? Because that is tricky without the right jig and drill press.

    As far as vice blocks go. I have a Brownells version of a Reaction Rod and a DPMS vice block which works very well. www.midwayusa.com DPMS Action Block. I use the Vice block for barrel installs and the Reaction Rod deal for muzzle devices.

    If you use the DPMS block, you put the block in and the pins through, then you turn the receiver on its side and clamp it into the vice with a protective block of wood on the top rail side and the DPMS block on the other. So you are squeezing the receiver between the top of the receiver and the bottom of the receiver. This makes for a very secure working environment that doesn't put as much pressure on the receiver pin holes.

    As far as the ALG rail is concerned you might want to give the EMR V1 another look. The V2 looks good but ALG put the M-Lok slots at weird angles. There are no slots at 3 and 9 O'clock IIRC. I have a rifle with a EMR V1 M-Lok, and I'm happy with it.

    Good luck.

Page 2 of 5 FirstFirst 1234 ... LastLast

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
  •