Barrel wrench
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Thread: Barrel wrench

  1. #1
    Gunco Member DucatiSS's Avatar
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    Apr 2012
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    Default Barrel wrench

    I am in the process of building a M16-A1 kit. The front sight group was already attached to the barrel, so in order to attach the barrel to the upper I either have to:

    A) remove the front sight group to use the Brownells barrel nut wrench for $25. Probably the strongest because it is a full 360 degree wrench


    B) Buy the Spikes Barrel wrench the will slip over the barrel for $40.


    C) Use my armorers wrench. I have heard that these sometimes have a tendency to break. I thought I bought a good one, but who knows.

    What do the rest of you use? (I am leaning towards the Spikes)

  2. #2
    gunco irregular moleman's Avatar
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    Feb 2005
    Next door to my neighbors house in Michigan
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    You're not really torquing the barrel down like you would a mauser barrel so a super strong "O" framed wrench isn't needed. I have a wrench similar to this one for the past 15 years or so AR-15/M16/AR-STYLE .308 ARMORERS WRENCH - Brownells Mine isn't a smith ent... but it's the same wrench and you can find them for about $25 new at a gun show. Look around and you'll find a similar one with the M4 spanner wrench in the handle for somewhere in the $20s also. It's how the head is formed thats important. This style of wrench grabs about 2/3rds of the points on the barrel nut. You aren't going to strip the nut points or break the wrench unless you try really hard. The back side of mine also has three nubs formed into it in case you want to use it on a free float tube.

  3. #3
    Gunco Veteran perry's Avatar
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    Nov 2009
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    just put bthe nut wrench in vise and torgue it. i got to buy a wrench to but im just going to buy the wheeler upper vise clamp that has a gas tube alignment rod for tourgueing thebarrels nut myself.

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