Norinco NS522 build: NEW MAG RELEASE

D&T of the trigger housing for the over travel screw is a piece of cake BTW. Home Depot has lots of assorted blind allen screws for this job. I found that was enough for me to be happy with the trigger pull. Weight was fine and really no creep, but the over travel was pretty bad.

Hi Hitzy

Can you walk us through how you did the over travel screw set up you did , mmmmmm maybe some pic's too ..........??

Cheers :cheers:
 
Hi Hitzy

Can you walk us through how you did the over travel screw set up you did , mmmmmm maybe some pic's too ..........??

Cheers :cheers:

Same as Father did, except I went with a blind allen screw and loc-tite....
image_zpsec814e99.jpg
 
I originally planned to use a blind allen screw. The brass was what was available when I was testing and I never got around to chanching it out. I prolly should!
 
So, after a massive delay. I have decided on what I wanted for a bolt handle. Now, I have done several custom handles over the years, but I wanted one slightly slab sided in this case to facilitate my preferred action cycling with my index-finger. I have put alot of thought into bolt handle design as a whole. The NS522's handle is far too small (my opinion) and it makes chambering any CCI product painful on my supple hands. At the same time, I wanted nothing like a tactical bolt handle for mine, so this is the result of what I think I want. If the profile looks slightly off to anyone, that is why. I also would like to apologize for the less than stellar pics. I was outside using my welding cart as a workstation and the sun made taking pics difficult. Well, for me anyway. Anyhoo, here is the victim in all its glory!

Im cutting with a cut-off wheel on a grinder. Yes, im super skilled like that.LOL!

Ugh, crappy pic alert! Make sure to check the sizing as you go!

Cleaning up my grinding with a wee file.

All cleaned up (well, not really ready at all. I noticed when I got inside out of the sun that it needed more prep before threading) and ready for threadin'. I am going to be using 3/8x16. You will see why shortly.

The victim and a small chunk of 6061. I chose aluminum for the obvious ease of use, but I am planning steel. I think..
 
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I guess I need a tap and die set now
You should need only one tap--I used two 4-40 allen-headed set screws, and, hence, a 4-40 tap. I used a 3/32" drill bit to drill the holes. What you really need is a good drill press--or access to one--a quality drill press vise, and good quality, sharp drill bits (preferably new ones). Use a quality center punch to mark where the holes are to go, set your drill press vise up very precisely, drill slowly, and use oil frequently to keep the bit cool. Most importantly, the objects to be drilled (trigger and trigger housing) must be precisely placed when you start drilling. Taking the time to check and double check that everything is set up correctly and securely will make the difference between a botched job and a good one.
 
" hence, a 4-40 tap. I used a 3/32" drill bit to drill the holes. What you really need is a good drill press--or access to one--a quality drill press vise, and good quality, sharp drill bits (preferably new ones). Use a quality center punch to mark where the holes are to go, set your drill press vise up very precisely, drill slowly, and use oil frequently to keep the bit cool."

OMG ........... now I need a >> Drill Press , drill bits , oil , center punch , drill press vise and a tap set too :runaway::runaway::runaway::runaway::runaway::runaway::runaway::runaway:

Thanks for the Christmas list < I'm sure Santa will want to speak to you personally hahahaha.
 
OMG ........... now I need a >> Drill Press , drill bits , oil , center punch , drill press vise and a tap set too
Well, maybe Christmas has already came for some of your friends. Ask around, surely someone you know has a drill press you could use. I used an $80 bench mount unit from Harbor Freight Tools to do mine. Two 4-40 allen headed set screws, a 4-40 tap, a tap handle, two 3/32" drill bits, and a bottle of oil could be had for $25 or $30--that, a good friend with a drill press, and some patience should see you done by Christmas.
 
Squarin' her up in my wee drill press vice.

Some drilling action.

So, the reason for the 3/8x16 thread was because I wanted to thread in a bolt (removed the head) so that I could rotisserie for the profiling.

Was not square(ish) now is! (Ish)


My drill pretending to be a rotisserie.

So, there was kind of alot of shaping and checking as I went. I didnt go and take a bunch of crazy pics, so this is the rough ( really rough) final(ish) profile. I think.

In all her sweetness!


Lost the 4th side in the grass, but hacksaw be d@amned! A grinder CAN make nice cuts.
 
Wow Father , great job !!

How about a red neck job , drill a hole in the correct location , get a self taping metal screw , cut the screw to the approximate correct length , file down the cut end to a nice flat bearing surface ,
screw the self tapping screw into the new hole till it is in the correct position / depth , remove and trim if required and Bob's your uncle ??

Well it's just a thought ............ lol

:runaway::runaway::runaway::runaway::dancingbanana::dancingbanana::runaway::runaway::runaway:
 
Wow Father , great job !!

How about a red neck job , drill a hole in the correct location , get a self taping metal screw , cut the screw to the approximate correct length , file down the cut end to a nice flat bearing surface ,
screw the self tapping screw into the new hole till it is in the correct position / depth , remove and trim if required and Bob's your uncle ??

Well it's just a thought ............ lol

:runaway::runaway::runaway::runaway::dancingbanana::dancingbanana::runaway::runaway::runaway:


You are not far off at all man. Basically, you are talking about "pinning" the bolt handle and that is a very acceptable method. Normally you will drill a small hole on the side that faces the stock ( so you never see it) and use a "pin" that is made of the same material as your handle. Once it is tapped in place with epoxy or whatever and polished out you will never know.

This one I made is easier to remove if I change my mind. That is the main benefit of threads. Plus, once you have a tap and die set you will able to fabricate and repair all sorts of cool things.
 
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