DIY Mosin Nagant Bent Bolt Tutorial

Discussion in 'Firearms' started by Derek2002, Jan 8, 2013.

  1. Derek2002

    Derek2002 Tracker

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    This will be tutorial for a DIY bent bolt handle for a mosin nagant rifle. It should also work for pretty much any other rifle of similar design. The cost of a bent bolt service ranges anywhere from a $30 epoxy job to a $60 weld and polish. This job will cost you a grand total of $0.62 providing you already have the tools required. The job consists of cuting off the old bolt handle and creating a new handle from a 5/16" bolt. It is then soldered into the bolt body with ordinary solder. Silver solder is prefered as it is stronger and welding it in is best. I could not find silver solder locally and I dont have access to a welder so I used ordinary solder. It seems plenty strong enough for the job. I have done several with no problems. I tried breaking one with no luck. The only reason that it might break if the job is done properly is if it is beat with a hammer repeatedly. It should last the life of the rifle. Anyways lets get started :dblthumb:


    TOOLS REQUIRED
    1. Hacksaw
    2. Drill press and a 5/16" bit for metal (hand drill can be used if your careful)
    3. Vise
    4. An assortment of files
    5. A pair of vise grips or a small pipe with an inside diameter of 5/16" or slightly larger
    6. Propane torch
    7. Bench Grinder (not required but it helps)

    MATERIALS REQUIRED
    1. 5/16" grade 8 bolt about 6" long with a smooth shank.
    2. Solder
    3. Fresh tank of propane
    4. Sandpaper

    ESTIMATED TIME
    2-3 hours




    Step 1. Remove bolt from rifle and disassemble it. Set all parts aside except for the handle itself.

    [​IMG]

    Step 2. Mount bolt handle in vise and use your hacksaw to cut the handle from the body. I used a scrap block of wood to brace the bolt to make for easier cutting. Then cut the ball from whats left of the handle using the same process.

    [​IMG]

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  2. Derek2002

    Derek2002 Tracker

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    Step 3. Using files and a bench grinder if you have one, work away the excess metal where the handle used to be until it is flat. Then use sandpaper to get it nice and smooth. If you plan on a polished finish then now is the time to do most of your sanding work as it is hard to sand around the bolt handle when it is finished.

    [​IMG]

    Step 4. Insert into rifle and mark the location of where you want the handle to be located.

    [​IMG]

    Step 5. Mount bolt into vise on your drill press and make sure that its nice and straight on both axis’s. I just eye ball it. You just don’t want to drill thru the side of it or cause alignment problems. Then using a 5/16” bit make a hole roughly 7/16” deep. Just make sure not to go all the way thru. Using the same process, drill a hole in the ball.

    [​IMG]

    [​IMG]

    [​IMG]
     
  3. Derek2002

    Derek2002 Tracker

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    Step 6. This step involves heating metal to very high temperature’s, please use gloves and wear safety glasses and use common sense so you do not get burnt. Mount the 5/16” bolt into a vise like pictured with the head down. Using your torch, heat the bolt to a dull red color. Try to keep the heat in as small of an area as possible. This makes helps make a short tight bend as opposed to a long bend point if that makes sense. When the bolt is the correct temperature, slide your pipe over the threads or clamp vise grips over the end. Bend the bolt toward you and make a bend that is roughly 80-85 degrees. Work quickly but don’t rush yourself. That will cause an accident. It should bend pretty easy if not you need more heat. Let cool.

    [​IMG]

    [​IMG]

    Step 7. When the bolt is cool remove it from the vise and cut it like pictured. The position of the cut will determine how far out the of body the handle will sit. Then cut the threads off. Leave it a little longer than you expect you will need as you can always remove material but you cannot replace it.

    [​IMG]

    [​IMG]

    Step 8. (Optional) If you would like for your bolt to have an outward swoop then you repeat step 7 with the side the threads were on down in the vise and the spot you cut facing away from you. You will need to have an idea of how long you want the handle to be and determine where you want the bend. To do this you can do a mock up by placing the new handle into the previously drilled bolt body. When you know where you want the bend, heat that spot up and then use you vise grips or pipe to bend it towards you to the degree in which you want.

    [​IMG]
     
    Last edited: Jan 8, 2013
  4. Derek2002

    Derek2002 Tracker

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    Step 9. Cut the bolt to the desired length. And you will end up with this. Sorry the pic is upside down but you get the idea.

    [​IMG]

    Step 10.(Optional) If you need a lower profile handle for your rifle, now is the time to do that. Using a bench grinder and files, flatten the bent portion to your needs like so. This isn’t the finished product but after a few minutes on the grinder. You’ll see its nice and even later.

    [​IMG]

    Step 11. Time for more heat. In this step we will begin soldering the ball to the handle. Clean both of the end of the bolt and the hole in the ball well with sandpaper to ensure a good contact of the solder. Mount the ball in a vise and insert the bolt handle into the hole. Begin heating up the joint for a few minutes. It needs to be about 500 degrees for the solder to melt. The object is that the heat of the metal itself will melt the solder not the flame. Remove heat from the bolt and press your solder into the joint and work your way around it. If it immediately pools upon top of the joint then it is not hot enough and needs heated more. It should flow downward into the joint. When the joint is full it will start pooling on top because there is nowhere else for it to go. When it is cool use your files and sandpaper to remove any excess solder and make the joint look good.

    [​IMG]

    [​IMG]

    [​IMG]
     
  5. Derek2002

    Derek2002 Tracker

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    Step 12. Using the same process as step 11, you will now solder the handle to the bolt body. You will need to do a mock up to determine the correct angel that you want and mark it some way. Mount the bolt body in a vise and solder the joint.

    [​IMG]

    [​IMG]

    [​IMG]

    Step 13. You can now finish it as you see fit. I kinda like them with a blued finish but many people do a full polish or a dull satin. Here is the finished product on this one. My friend wanted sort of a rough finish on it to go along with the theme of his rifle.

    [​IMG]

    [​IMG]

    Well that is pretty much all there is to it. I done this one for a friend at no charge for the sake of this tutorial. It took about 1.5 hrs of labor and about 2 hrs to type up lol. If it helps just one person then it was worth it. I hope that this will save someone some money and help some people out. Im sure I probably left some things out so if there are questions what so ever just ask. Thanks guys.

    UPDATE: While they seemed to be strong enough with regular solder the bolt in this tutorial did break loose. While it might have just been an issue with the solder penetrating into the bolt body and not making a tight bond, I would recommend using silver solder as it is much stronger. It also would not hurt to pin the handle to the body as well just to be sure.
     
    Last edited: Apr 27, 2013
  6. Paul Foreman

    Paul Foreman Supporter Supporter

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    well done ...
     
  7. Iz

    Iz MEMBER of a BANNED Bushclass I Bushclass Instructor

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    Great tutorial, man. I'm not much of a gunsmith but this was interesting even too me. Thanks.
     
  8. Sgt. Mac

    Sgt. Mac Elder Staff Member Administrator Supporter Bushclass I Bushclass II Bushclass Instructor

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    TYhanx Buddy great tutorial:dblthumb::35::35:
     
  9. Derek2002

    Derek2002 Tracker

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    This is my favorite one that I done. It was on a project rifle that I was working on but I ended up trading it before it was finished.

    [​IMG]

    [​IMG]

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  10. hunter63

    hunter63 Bushmaster

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    Thanks, man, That was a great step by step, tutorial........They are a lot of work to do, and yeah, the typing and picture loading takes longer than the job it self, usually.

    Nice work........
     
  11. Ahnkochee

    Ahnkochee Bushmaster

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    Nice tutorial, thank you.
    Brownell's Hi-Force 44 solder is great stuff for this kind of project a silver/tin alloy (non-toxic) that melts at relatively low temps so an ox-acetylene torch not necessary. http://www.brownells.com/gunsmith-t.../solders-flux/hi-force-44-solder-prod709.aspx

    I always wanted to get a beater Nagant and install a dogleg bolt handle like on a 1917 Enfield to move the ball behind the trigger for quicker working from the shoulder like a Lee Enfield SMLE the fastest repeating bolt action rifle ever. The bolt position combined with cock-on-closing made the SMLE lighting quick from the shoulder. I thought it would look pretty custom too. It would take quite a long dogleg for a Nagant action but I always thought it might be cool improvement.

    1917 Enfield Bolt
    [​IMG]
     
  12. Derek2002

    Derek2002 Tracker

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    Yeah I have been wanting to do something similar to that for a while now. The only problem is that I traded off both of my mosins lol. I do plan to buy another very soon and that may well be the next project. Maybe with a short barrel and a scout scope setup for quick target acquisition. It would be a little more work but that's okay. The longer it takes, the more enjoyment I get :4:
     
  13. Zesr88

    Zesr88 Tracker

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    Where did you pick up that stock. I really like that!!
     
  14. Derek2002

    Derek2002 Tracker

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    I actually made it out of the existing stock and a psl buttstock. It was a TON of work but turned out awesome. I was playing with an arctic snakeskin paint scheme but I couldn't get it right.
     
  15. Redbusa06

    Redbusa06 Banned Member Banned

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    Makes me wanna get another mosin! Maybe my buddy will let me tinker with his.....I already refinished his stock
     
  16. Yellow Lab

    Yellow Lab Supporter Supporter Bushclass I

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    I shot a friend's 1917 once as quickly as I could operate the bolt and it surprised me how quickly this could be done.

    He was quicker than me of course and I was like a kid mesmerized by the action. :D
     
  17. statikpunk

    statikpunk Guide

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    thanks, nice job it came out good
     
  18. Derek2002

    Derek2002 Tracker

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    UPDATE: While they seemed to be strong enough with regular solder the bolt in this tutorial did break loose. While it might have just been an issue with the solder penetrating into the bolt body and not making a tight bond, I would recommend using silver solder as it is much stronger. It also would not hurt to pin the handle to the body as well just to be sure.
     
  19. hunter63

    hunter63 Bushmaster

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    The amount of work and care taken with this project, make me wonder if maybe a wire weld would be more in order, than solder.
     
  20. Metalguy

    Metalguy Tracker

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    I did a very similar build about 4 years ago. I bent the bolt back even with the trigger and it worked well. I'm pretty sure that I used silver solder but I can't remember. I got my information from gswagner.com very cool site. If I can find them ill put up some pictures of my build
     
  21. Derek2002

    Derek2002 Tracker

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    I agree with you 100% man. Unfortunately I did not have access to a welder so this is more oriented to people in the same boat as me lol. Same steps still apply tho minus the soldering parts.
     
  22. rodimusprimus

    rodimusprimus Tinder Gatherer

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    If you already have the drill press why not just tap and tread the pieces together then solder or lock tight them together? That would eliminate the solder falling apart and would keep the pieces snug in place.

    basically thread both ends of the 5/16 bolt once you get it to the shape you like. Tap the Ball and bolt body (so drill tap with a 3/8-16 tap). Plus if you want to switch out the ball later you can now do that.
     
  23. Blazin

    Blazin Guide

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    You took the words out of my mouth!
     
  24. rodimusprimus

    rodimusprimus Tinder Gatherer

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    There are lots of 5/16 bolt knobs out there if you decided you wanted to switch out later. Plus threading and tapping just seems like a stronger hold.. end of the day instead of falling off if anything happened it would just come slightly loose (fixed with lock tight).
     
  25. Cpl C

    Cpl C Tracker

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    I have a M44 that I have been wanting to sporterize. This looks awesome! Great write up! Now i just need to find a nice looking stock to put on it. :D Thanks for taking the time to share!
     
  26. rjsixgun

    rjsixgun Tracker

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  27. Spooky_Boogie

    Spooky_Boogie Tinder Gatherer

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    Thanks Derek, very informative...I've been rather iffy on sending in my bolt off to have someone else work on it...I always prefer working on my projects myself rather than handing them off...After seeing this I plan to purchase another bolt and give this a go ...
     
  28. jaydendyck1

    jaydendyck1 Scout

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    [​IMG]

    I have since sold off this project but I often think about doing the same thing again but this time putting a timeny trigger in her and bending the bolt.
     

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