Poly stock won't mount back onto gun

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timbo.nz

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Hello, I just got a new black plastic stock Poly m14 (Its actually has Norinco markings in the New Zealand shipment). I took off the stock for the first time, and now I can't remount the stock. The front section slips on ok, but when its time to close the back of the reciever down, it gets stuck with a 4mm gap.

Has anyone else came across this problem? I can't figure it out for the life of me why it won't close. I can't see any obstructions of any kind. I've tried hammering it down with a hammer; (Carefull not to crack or damage the finish) But that does not close the gap any further.

Also my barrel needs to be reindexed. Is that why my barrel isn't pinging when I release the bolt? I noticed it only pings for a second when I release the trigger, but that ping comes from the reciever, not the barrel.
 
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Try this... remove that barreled action... have a look at the op rod spring guide retaining pin (slides in and out). It might have migrated out, wandered out while you were assembling the op rod spring guide / spring assembly BACK together. :eek:

Get back to us and keep us posted on what you discovered! :D

Re-indexed? Have a very good look at the front sight. Some of the Norcs looked like they needed re-indexing. Then at the Winnipeg clinic in April, I had a closer look and realized that the front sight base machined on top of the flash suppressor was not milled straight or flat across the top. High school shop class kids musta been drunk! The barrels were just fine!



:cheers:

Barney
 
ive seen this on my poly stock ... the steel bedding liner is a bit tight.

A big rubber mallet is your friend ... but like hungry said, make sure it is not hanging up on the pin.
[;{)
LAZ 1
 
I check the spring guide retaining notch, it wasn't the cause. LAZ, is the steel bedding liner the bits around the magwell in the stock?

The Poly barreled assembly go's onto my Norc wood stock perfectly. And my Norc barreled asssembly seems to go more into my Poly stock with a smaller 3mm gap.

Hungry, I checked the flashhider, the flat parts on the flashhider seem to be level. When I look at the flashhider splines on the barrel, I can see its angled toward the left(looking from back of rifle). Could this be the reason why I'm not getting a PING? also would this effect the head spacing? Eighterway, I'm OCD about these things, I'm going to try fix it, especially when my older Norc M14 has is 100% verticle. :)
 
FWIW... I mounted a Marstar 2007 rifle into a Poly-tec stock I got off the EE...

When I initially put the stock & barreled action together, it would not "seat", having about a 1/4 inch or more gap between the receiver & the stock...

So, I fiddled & I "looked" at it... The recoil guiderod pin HAD migrated out, so I put it back in...

Still didn't seat...

So I looked & I fiddled... Then I spread the plastic stock apart in the area of the magazine channel...

And, it seated almost perfectly! A couple raps with a rubber mallet on the back of the receiver & presto, installed stock!

Cheers
Jay
 
I was just playing with my Norc M14 tonight and I managed to convince it (rubber mallet is your friend) to sit well / tight inside the Poly black plastic stock. Okay, hijack is over....

Back to the Poly not sitting properly... Hmmm I wish I was around to help you out.... :rolleyes:

Barney
 
I bought a few stocks out of here for my candy apple projects and found that the rifle would not seat into them. After trying for 6 hours to figure out what the problem was I loosened off the 2 stock liner bolts so it could shift,tapped the receiver into the stock,fit and locked the trigger assm. in place then retightened up the stock liner bolts. Now its a perfect fit every time no matter what stock I use!!!

You would think that a chu wood stock would accept any action but thats not the case as I found out. Might be the same problem with every other stock out there???
 
Cheers icehunter, that did the trick... Hardess part was finding a suitable tool for those screws. I used a circlip plier with a adjustable wrench!
 
LOTS of new Poly's have been coming across my bench for M14 match conditioning AND barrel reindexing. I have noticed the stocks to be very tight upon reassembly but so far they have all fit up. I support the rubber mallet idea as well hehehe.
on the bright side, I am very impressed with the overall finish and assembly of these models. BUT every one i've handled so far has the rear sight base centerline machined off to the right or to the left..... kind of a bummer if you ask me. BUT we are working on a modification/fix to this issue by tig welding the original line , resurfacing the sight base, and milling a new , correctly positioned center line.... I'll report back one day soon on the success or failure of that endeavor. ;)

I'd also like to take a good look at one of the poly's plastic stocks after dumping a couple hundred rounds down range to check for shrinkage or warpage due to the heat the rifle will generate.
 
I thought the rifles were supposed to be able to be disassembled and cleaned out in the field? If you need a rubber mallet to put it back together and the rifle is designed to be put together by hand, by a grunt in the dirt... wouldn't you think there is a more serious issue?
 
NavyCuda said:
I thought the rifles were supposed to be able to be disassembled and cleaned out in the field? If you need a rubber mallet to put it back together and the rifle is designed to be put together by hand, by a grunt in the dirt... wouldn't you think there is a more serious issue?
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Mine is the same way. I have yet to need a rubber mallet to put mine back together just a light bump with my hand seated it in the stock with no issues.
I'm not to worried however as I plan on running a JAE stock on the rifle anyway.

Best Regards,
Tim
 
timoram said:
Mine is the same way. I have yet to need a rubber mallet to put mine back together just a light bump with my hand seated it in the stock with no issues.
I'm not to worried however as I plan on running a JAE stock on the rifle anyway.

Best Regards,
Tim
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I can understand snug, which my norc is far from(take the trigger group out and the barreled action will fall out), but needing a mallet for reassembly seems like some smoothing needs to be done on the inside of the stock. I think that if you can reassemble the rifle by hand, it would be ideal to have to use a bit of force to get the receive back into place. Once you get out any kind of hammering tool, even if it is a mallet, for something that shouldn't need a hammering tool... It might be time to re-evaluate the situation.

It reminds me of people who will miss a bolt on a bell housing when pulling an engine, and rip the engine out of there and break the ear off the bell housing when all it would have took is 5 minutes to find the problem.

There has to be evidence of scuffing inside of the stock, which would indicate the areas that need a little work.

Don't get the wrong idea either though, I'm no gun smith and I don't know these rifles as well as previous posters I'm just using my general mechanical knowledge as reference.
 
Without having actually shot one of these new polys yet, I can't say for sure, but i'm gonna bet that once the rifle heats that stock up on a few range outings, that plastic or zytel stock will form itself and no doubt have less tension. On the bright side, a very nice tight stock fit.... in the right bearing locations, is a damn fine thing on a rifle such as these. Average joe grunt does not need a rifle with match qualities so may need a looser stock fit for his grunting duties. However, tight stock fit leads to accuracy and only the designated marksman in joe grunts platoon need carry the extra tools required to maintain his rifle .... such as perhaps a rubber mallet. If my attempt at being humorous is missed by some, please excuse me LOL.

On the serious side, i see no problem with the tight stock fit some are experiencing. I've examined them in detail.... and i customize and bed m14 stocks on a regular basis. While i'm not a fan of the material chosen for the poly stocks construction, they are in fact very well made , and the steel liner is a unique and probably damn fine addition to the synthetic stock idea.

my 2 cents, for what that's worth these days :D
 
M14Doctor said:
Without having actually shot one of these new polys yet, I can't say for sure, but i'm gonna bet that once the rifle heats that stock up on a few range outings, that plastic or zytel stock will form itself and no doubt have less tension. On the bright side, a very nice tight stock fit.... in the right bearing locations, is a damn fine thing on a rifle such as these. Average joe grunt does not need a rifle with match qualities so may need a looser stock fit for his grunting duties. However, tight stock fit leads to accuracy and only the designated marksman in joe grunts platoon need carry the extra tools required to maintain his rifle .... such as perhaps a rubber mallet. If my attempt at being humorous is missed by some, please excuse me LOL.

On the serious side, i see no problem with the tight stock fit some are experiencing. I've examined them in detail.... and i customize and bed m14 stocks on a regular basis. While i'm not a fan of the material chosen for the poly stocks construction, they are in fact very well made , and the steel liner is a unique and probably damn fine addition to the synthetic stock idea.

my 2 cents, for what that's worth these days :D
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Well I had a good laugh at the first part, and you made some very valid points! If I'm ever employed again and making money I know there are a few things I would like you to do to my rifle :D I'd rather do them myself, but I don't have my lathe or bench or tools setup...
 
timbo.nz said:
Cheers icehunter, that did the trick... Hardess part was finding a suitable tool for those screws. I used a circlip plier with a adjustable wrench!
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one of those "keys" for those cheap screw type gun locks( the ones with the 2 tits) works -
 
NavyCuda said:
I thought the rifles were supposed to be able to be disassembled and cleaned out in the field? If you need a rubber mallet to put it back together and the rifle is designed to be put together by hand, by a grunt in the dirt... wouldn't you think there is a more serious issue?
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Once you rework the stock as per icehunter on reply #8, you won't need the mallet any more. After that rework, the reciever should come down to a small 2mm gap. The trigger unit then pulls the reciever the rest of the way without much effort.
 
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t-star said:
one of those "keys" for those cheap screw type gun locks( the ones with the 2 t**s) works -
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Thats what I used on mine. The t**s fit good and with a pair of pliers not much work to get everything to mate up...so with out further adew here are the trigger locks that we are talking about as well as the key that fits them....Ya u can tell I am bored...Just so that we dont leave any one out in the dark and the trigger locks only sell for like a buck apiece or so....Keep the key and throw the lock in the garbage....

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