UZI Talk Forums
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 20 of 21

Thread: building a sterling from a kit

  1. #1
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12

    building a sterling from a kit

    Can anyone tell me the easiest way to remove the rear receiver ring.

  2. #2
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    The Mk4ís have a positioning pin you need to drill out first.

    Name:  pin.JPG
Views: 391
Size:  34.1 KB

    Then put it in a lathe or use a roto tool, sanding wheel or something to cut away as much of the tube as you can from the inside. After that heat it from the inside to melt the braze and it will come right off. A Mapp gas torch is hot enough.

    Donít worry if you mess it up. You can buy 4130 DOM to make a new one from.

    Oh, one more thing. Welcome to the forum.
    Last edited by Traveler; 11-22-2015 at 07:45 PM.

  3. #3
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    Thanks for the info traveler. And thanks for welcoming me
    Last edited by altra; 11-22-2015 at 08:53 PM.

  4. #4
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    Any tips for removing the barrel support from the front of the receiver

  5. #5
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    There are three positioning pins just behind the rolled lip of the tube. One is at 12 o’clock; the other two are 120 degrees apart. Grind them down or drill them out. Then heat with a torch to melt the braze.
    I put a bolt through the support and tighten the nut on the outside then put it in a vice, so it’s pointing muzzle down. When you heat it the casing falls down onto the vice.

  6. #6
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    Thanks again traveler. I'll let you know how it works out.

  7. #7
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    Thanks. That would be great.

  8. #8
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    This is my first attempt at a build. So any tips or tricks will be greatly appreciated.

  9. #9
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    What model Sterling are you building? I am guessing you will be making a semi-auto? It would also be helpful to know what kind of tools and skills you have. You obviously have a parts kit. Do you have any of the other parts, receiver tube, semi-auto springs, etc? Sorry to ask so many questions. The answers will help me point you in the right direction.

  10. #10
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    A semi auto mk4. I have a receiver tube and a parts kit from IMA, a semi auto bolt and springs. I can weld and know my way around hand tools.

  11. #11
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    Awesome!

    A semi-auto Mk4 will be an SBR (Short Barreled Rifle). You will need to submit a Form 1 to the BATFE and have it approved before you do the build. It’s really easy to do. If you have a trust or company you do it online by registering on the BATFE’s E-Forms website, filling out a Form 1 and paying the $200 tax. Or you can download the Form 1 and do it old school. E-Forms is the fastest, about 30 days to get approved.

    After you get your tax stamp, the build will be fairly simple since you can weld.

    You will need to make or buy a bolt blocking bar and trigger pack denial pad. The bar blocks a full-auto bolt and pad blocks a full-auto trigger pack. There’s a guy on Gunbroker who sells the bars and pads. They are not expensive.

    You can modify your trigger pack to semi-auto only. The sear is slimmed and a pin is welded in to prevent the selector from going to “A”.

    You will also need a firing pin spring retainer. APEX might have them, or I can give you the dimensions if you need to make one.

    Let me know when you are ready to do the welding. I have a few tips to help keep the tube from warping.

  12. #12
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    I gave the government their money and e-flied. I should be hearing back any time now. And I'm going to track down a pad and a bar tonight. I wish the atf would hurry up. I'm like a big kid waiting for Christmas. Again traveler thanks for all your help

  13. #13
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    You have picked a great gun for your first build and you’re doing it right. You will not be disappointed. Sterlings are the Rolls Royce’s of SMG’s.

  14. #14
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    And they look so much better as an sbr than a 16" barrel carbine. IMO. In the meantime I'll strip parts and wait
    Last edited by altra; 11-23-2015 at 11:17 PM.

  15. #15
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    Oh yeah! And it’s much lighter and better balanced with a Mk4 barrel.

    You can also modify the trigger en bloc and drill the vent holes in the receiver while you’re waiting.

    Sear pdf attached.
    Attached Images

  16. #16
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    Cool thanks for the PDF and the info. In the process of removing rear receiver ring. Is there any danger of hurting the rear sight with heat?
    Last edited by altra; 11-24-2015 at 04:50 PM.

  17. #17
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    Yes, you might damage the spring. Take the sight apart first. Use a small punch to knock the pin out.

  18. #18
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    Thanks will do

  19. #19
    Registered User
    Join Date
    Nov 2015
    Location
    Western Pa.
    Posts
    12
    The receiver ring removal was a success. Thanks traveler

  20. #20
    UZI Talk Life Member

    Join Date
    Feb 2009
    Location
    Houston
    Posts
    1,236
    Thanks for letting us know.

    Please keep us posted on your build.

+ Reply to Thread

Posting Permissions

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


Please consider becoming an UZI Talk Supporter.