View Full Version : Polish Underfolder kit builds
Independence Arms
05-05-2003, 08:16 PM
Hey, this is Randy form Indy Arms
I am currently doing Polish kit builds to military spec. (as close as legal;-)
I enjoy doing the quality Polish rifles and have experience with the fired and unfired kits.
Let me know how I can help.
Randy
indyarmscom@sbcglobal.net
http://www.independencearms.com/
Look at the rear trunion pics:
http://virtuals.catalog.com/~cures413/images/Dsc00457.jpg
http://virtuals.catalog.com/~cures413/images/Dsc00459.jpg
pinetop
05-05-2003, 10:37 PM
Whos receiver are you using ?
Kalashnikov Krazy
05-05-2003, 10:48 PM
Yeah, what receiver? Lets see some more pics! More, more, more....
Independence Arms
05-06-2003, 08:10 AM
OOW ak47 receiver.
I also modify an existing rifle such as SAR1 donor, and can convert pre ban rifles to the Polish rifle.
I will post more pics as they come available.
The more Polish rifles I build, the more chance I have to make pics. ;)
Randy
GUNSMOKE
05-08-2003, 07:29 AM
Randy looking right to left on the bottom picture is that rivet installed flat or is it just not formed to riveted head, like the rest?
Curious people want to know.
Independence Arms
05-12-2003, 02:26 PM
AKE, the customer supplied a Bulgarian rear trunion rivet, as in the picture, so I used it.
Indy Arms can form rivets any way that the Warsaw pact formed them.
Thanks for the interest.
Randy
http://virtuals.catalog.com/~cures413/images/bulgyflat.JPG
trikerjay
05-13-2003, 02:58 AM
the russians also use the flat on one side rivets.
later jay
www.gunsnet.net/album/showphoto.php?photo=6267
why do i only get red X's when i try to post photos now?
aghaffari
05-26-2003, 10:45 AM
When you installed the rear trunion, was the back of the trunion flush with the receiver? Can you put up a picture that shows the side so I can see where you drilled the holes?
If I install it flush with the back of the receiver, then the bottom of the trunion is not parallel to the bottom of the receiver.
Thanks.
GUNSMOKE
05-27-2003, 07:38 AM
Randy thanks! You do really nice work, always have!
My Russian rivets are not flat, they just have that little flat spot on the crown of the rivet.
PolyTech and Valmets, now they HAVE rivets. ;)
Randy your work is reall clean, I like that! Your a good man.
DrugRunR
05-28-2003, 11:42 AM
Originally posted by trikerjay
why do i only get red X's when i try to post photos now?
http://www.gunsnet.net/album/data/500/6602Image001.jpg
<shrug> don't know... NOOB.
LMAO
Independence Arms
05-31-2003, 10:39 AM
You ain't never SEEN rivets till you seen Yugoslavian, Israeli and, of course, Egyptian rivets.
Randy
STENZILLA
06-01-2003, 04:08 AM
HELLO RANDY!
i also have a polish pmkms kit from global. you do very nice work! i should get my ohio ordnance works reciever this week, it needs holes drilled for the front and rear trunions, my question is, will/should a standard rear trunion work with this kit and ohio ordnance reciever? i really don't want to install a folder then weld it open, i can sell it along with the rear trunion and offset the cost of the parts i need. i have already ordered from global all the 922r extra u.s. made parts i'll need to conform.
yesterday, i e-mailed your site asking about assembly instructions concerning the ak-47, as you know, the site already offers the assembly instructions for the ak-74, which are very helpful, but i'm sure they don't apply the the former.
thanks for any help. "zilla"
scubadvr
06-01-2003, 08:46 AM
Do you have to weld the folding stock or can you silver solder it? I guess I just want to keep it legal so that if and when the law expires, it could be brought back. Any ideas?:up:
STENZILLA
06-01-2003, 08:58 AM
SCUBADVR, NOW YOU HAVE ME THINKING! ACTUALLY, I HAVEN'T ASSEMBLED THE GUN YET, WAITING FOR THE RECIEVER. THAT SAID, I DON'T KNOW HOW TO GO ABOUT WELDING/SOLDERING THE FOLDER. BUT YOU'VE GIVEN ME AN IDEA AND I'LL WAIT TILL I SEE WHAT IT ALL LOOKS LIKE BEFORE I GO ANY FURTHER. IT SURE WOULD BE NICE TO SEE THAT B.S. LAW GO AWAY, BUT I WON'T HOLD MY BREATH. "ZILLA"
scubadvr
06-01-2003, 09:06 AM
I have not thought it through completely but it seem to me that if 1,100 degree solder is good enough for muzzel brake installation (permanent) then why can't it be used in other applications to meet the requirements for the BATF? I was hoping someone was going to tell me I was all wet and save me some money. Then I would move on to some other project like mowing the lawn Ha Ha.;)
Silver Dollar
06-02-2003, 12:31 PM
You don't have to weld them open.
If you pin the piece which must be depressed in order to fold the stock. The stock is now locked open.
One of the other members here, replaced the inner spring with a piece of bar stock, which also works.
Either method requires at least partial disassembly of the rifle and tools in order to fold stock.
But both methods are reversible, after Sept. 2004. (we hope)
Independence Arms
06-02-2003, 03:29 PM
I can put the kit together with a regular rear trunion if that is desired.
OR
I can install the folder legally, yet not destructive so in case laws change.
Let me know how I can help
Randy
STENZILLA
06-02-2003, 10:37 PM
HELLO RANDY, MANY THANKS FOR THE OFFER OF HELP. I'M GONNA TRY IT ON MY OWN, AT LEAST FOR THE FIRST ONE. YOU COULD HELP ME WITH THIS QUESTION THOUGH, ALL MY PARTS HAVE THE SAME NUMBER, WHAT CAN GO WRONG BY PRESSING THE TRUNION BACK ON THE BARREL AND LOCKING IT WITH THE PIN? WILL THE HEADSPACE STILL BE THE SAME? I CAN'T SEE A PROBLEM WITH IT, CAN YOU? "ZILLA"
DrugRunR
06-03-2003, 08:18 AM
Why you always SHOUTING?
I guess it is because you are from NEW YORK???
Just kidding...
anyway...
I would still recommend that you check your headspace.
It is possible to reinsert the pin and still be a little off.
Checking headspace is a REQUIRED step on new builds.
Or for that matter in new weapons of non-US orgins(military surplus)
Yeah if ALL your main numbers are matching then go for it.
Main numbers means: Barrel, Front trunion, Bolt, and Bolt carrier.
IF those match you should be good to go.
You might want to post your questions or research some in the BIY forum.
And Randy, that is some good work on the rear rivets.
CHARLES
STENZILLA
06-03-2003, 08:48 AM
DrugRunR----just kidding too! sometimes i just start typing without noticing i'm in caps. i remember you from the ar-15 forum, i'm 1staircavrvn there. i picked my present username from my first encounter with "building". nuff said!
yes, all major parts are matching s/n. whenever my reciever shows-up, i'll continue with this project. i paid this dealer $50.00 to transfer the part to me, first error, then he said he'd mail the letter on the 23rd of may, i doubt he did, ohio ordnance hasn't recieved the ffl yet! getting pretty frustrated!
i purchased a rear trunion and buttstock from a member of this forum, i don't want to use the underfolder, maybe i'll sell it.
all for now, thanks for the input! "zilla"
scubadvr
06-03-2003, 03:06 PM
Is the issue of milled receivers out when it comes to PMKMS kits in a rebuild. If not is there a reputable source?
Independence Arms
06-03-2003, 04:27 PM
I have done milled recievers with this underfolder type stock.
I did this on regular rear tang receivers, so I had to do extensive modification to make it right.
Firing line may have a receiver for this.
Randy
STENZILLA
06-03-2003, 10:59 PM
HELLO SCUBADVR------as far as i know, and that's not far, the milled recievers are for threaded barrels only. "zilla"
p.s. ohio ordnance works sells one with rails for $59.95, or thereabouts. you need to drill both front and rear trunion holes.
DrugRunR
06-04-2003, 11:03 AM
not to hyjack the thread, but Firing Line offers milled recievers in 4 configuations
(1) Threaded trunion, std stk
(2) Threaded trunion, u-fold stk
(3) press in trunion, std stock
(4) press in trunion, u-fold stock.
I am sure that Andy can build you Polish kit with either #3 or #4 as listed above.
On a milled receiver then trunion is built into the receiver.
This means one less part to count.
So if you go with the milled kit you just need 5 US parts
I would do the FCG (hammer, trigger,disconnect), that is a easy 3
The get a US made slant brake and then the receiver
That is all 5.
Randy, how much would you charge to press in/headspace a barrel in a milled receiver?
CHARLES
Independence Arms
06-07-2003, 12:09 PM
A milled receiver barrel install, or any ak receiver barrel install, headspace & pin is just $75.00.
Randy
STENZILLA
06-07-2003, 05:19 PM
RANDY, PM COMMING AT YA! "ZILLA"
Reichpapers
07-09-2003, 08:58 AM
Concerning the rear trunion on the underfolder. It looks like you used a long rivet (like a fixed stock rivet) and four smaller rivets. What size rivets are the smaller ones similar to? Are they the same as the front trunion rivets? What should be used.
recon
07-09-2003, 09:35 PM
Okay which are the best and easier to do? Press or Threaded Trunion?
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