Irked with Bushmaster

This is a discussion on Irked with Bushmaster within the General Firearm Discussion forums, part of the Related Topics category; Since I have been home on leave I have been doing mods to a few of my firearms. My Bushmaster M-4 has been getting the ...

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Thread: Irked with Bushmaster

  1. #1
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    Irked with Bushmaster

    Since I have been home on leave I have been doing mods to a few of my firearms. My Bushmaster M-4 has been getting the Magpul treatment of late, with a new pistol grip, and stock, and rail covers, ect... Anyway, I wanted to add a Magpul single point sling attachment that is a replacement for the receiver plate. For those of you familiar with AR's this is usually a "5 minute job". Take off the buttstock and castle nut, replace the plate, and do it in reverse essentially and you are done. So last week I got together with a friend who had an AR wrench since I didn't have on handy, and we tried to get that castle nut off, and tried, and tried. It made me feel awfully weak since I couldn't get that castle nut to turn, I've done it before, it usually isn't hard. We decided to call it day so we wouldn't screw up the castle nut too bad.

    I had to go out of town for a few days, and when I came back my friend called and told me he found out that Bushmaster has been known to use red loc-tite on the castle nut, which would certainly explain why two grown men couldn't move it. So we have a few ideas of things to try tonight to get it off, a replacement castle nut has already been ordered. But if anyone else has ideas of how to get it off, I'm all ears. Anyone run into this on a Bushmaster before, it's rather aggravating really.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
    NRA Pistol/Rifle/Shotgun/Reloading Instructor, RSO, Ohio CHL Instructor

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    Distinguished Member Array ErnieNWillis's Avatar
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    You may try using a heat gun?????

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    Red Loctite can be removed by heating. Take a torch or a hair dryer and keep it on there until it gets too hot to touch. Try the wrench again. More than likely it'll move. Once you get it moving dont stop until its off the threads.
    I would rather stand against the cannons of the wicked than against the prayers of the righteous.


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    Yup, the torch is what we are going to try tonight. I just wish I didn't have to take a torch to my rifle in order to do a simple part swap. I just found this on Bushmaster's websites FAQ section:
    Question / Issue
    I just purchased an AR15 sling end plate for my Post Ban M4 style rifle. The lock nut on the buttstock will not budge at all. I am using an AIM AR 15 combo wrench and almost stripped the notches in the nut. Any suggestions? Being that it is a Post Ban, is it meant for only a gunsmith to change out the stock so as not to put an illegal stock on it? Please advise.

    Answer / Solution

    There may be "loc-tite" on the "Castle" nut. A small amount of heat may need to be carefully applied to the nut to loosen it.
    I've also heard that some nail polish remover might help the situation.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
    NRA Pistol/Rifle/Shotgun/Reloading Instructor, RSO, Ohio CHL Instructor

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    Between the two of us and a torch we got it done tonight. I just wish I didn't have to take a torch to m weapon for such a simple job. Maybe they should use blue loctite instead, just a thought. Also, I've got a new castle nut on the way, since the other one got kinda scratched up during the initial attempt. So, for all of you Bushmaster owners, remember that you may need a torch, to put a sling adapter on your end plate. And also that there are small parts and springs that may fly out while doing this swap.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
    NRA Pistol/Rifle/Shotgun/Reloading Instructor, RSO, Ohio CHL Instructor

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    Fire and a bigger hammer will almost always work.
    "Just blame Sixto"

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    Quote Originally Posted by SIXTO View Post
    Fire and a bigger hammer will almost always work.
    Pretty much, although it sometimes makes the gun owner cringe. At least the bigger hammer wasn't needed this go-round, as I only have so many hands, and they are kinda clumsy.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
    NRA Pistol/Rifle/Shotgun/Reloading Instructor, RSO, Ohio CHL Instructor

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    I'll hang on to the castle nut until you return, no fire will be applied.
    "Just blame Sixto"

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    Quote Originally Posted by SIXTO View Post
    I'll hang on to the castle nut until you return, no fire will be applied.
    Good deal, thanks. If you need i can give you an address to drop it off at, although I'm obviously not gonna make that public. But if you just wanna hold onto it so you can get some more good juju for finding criminals, that works too.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
    NRA Pistol/Rifle/Shotgun/Reloading Instructor, RSO, Ohio CHL Instructor

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    Doesnt matter to me, what ever you want to do. I'll just toss it in my box o parts, it wont bother me a bit until you return.
    "Just blame Sixto"

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    Quote Originally Posted by SIXTO View Post
    Doesnt matter to me, what ever you want to do. I'll just toss it in my box o parts, it wont bother me a bit until you return.
    Works for me, maybe in December we can actually grab a beer.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
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    Quote Originally Posted by buckeyeLCPL View Post
    Pretty much, although it sometimes makes the gun owner cringe. At least the bigger hammer wasn't needed this go-round, as I only have so many hands, and they are kinda clumsy.
    And this is why you never watch a gunsmith work on your guns.

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    Okay this is probably one thing a little duck tape wouldn't have fixed
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    Quote Originally Posted by nedrgr21 View Post
    And this is why you never watch a gunsmith work on your guns.
    Too bad I was the one doing the work, with the assistance of a gunsmith. At least we didn't burn down the shop?

    Okay this is probably one thing a little duck tape wouldn't have fixed
    Dang, I knew I forgot something, I didn't even think to try using any duck tape during the process.
    Fortes Fortuna Juvat

    Former, USMC 0311, OIF/OEF vet
    NRA Pistol/Rifle/Shotgun/Reloading Instructor, RSO, Ohio CHL Instructor

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    They're supposed to be staked on. I guess BM is getting lazy. I replaced mine, it wasn't too bad. Definitely not red loctited in place. Ungh.
    Battle Plan (n) - a list of things that aren't going to happen if you are attacked.
    Blame it on Sixto - now that is a viable plan.

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