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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles.

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  #1  
Old 07-06-2013, 3:12 PM
KCDS KCDS is offline
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Default PTR-91 and surplus paratrooper stock

got a surplus paratrooper stock from HKparts, tried to install it then realize the backplate/buffer cup portion of the stock is a tad too small for the PTR receiver....before hammering the thing in or return it, I figure I should ask anyone here has the same experience with their PTRs and para-stocks? Thanks
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Old 07-06-2013, 10:48 PM
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It'll fit. Unlock the telescoping stock and extend it about halfway before attempting to install it. This will allow you to move the end cap around some. You also sometimes have to squeeze the trigger housing up against the upper receiver with your hand while fitting the end cap on. Its a tight fit by design. Don't hammer it Move it around and take your time. Put it down when frustrated. You'll get it eventually and once you figure it out its easy.


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Old 07-07-2013, 1:56 AM
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I'll give it a try, thanks
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Old 07-07-2013, 5:57 PM
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Tagged
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Old 07-07-2013, 8:26 PM
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I've been trying with the method mentioned but no yield, it's still too tight for the cup to sit
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Old 07-07-2013, 8:37 PM
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Please post some photos may help.
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Old 07-08-2013, 9:03 AM
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How easily does the fixed stock mount up? Try dropping your lower trigger housing out and see if you can get the collapsible on the upper. I know what you're experiencing and can almost guarantee I could get it on there for you. You really have to move the end cap around and make sure none of the edges are hanging up. I guess it's possible your collapsible stock end cap is damaged or bent or something preventing fit, but having put these on and off many many times I know it can be a bit puzzling on the fit, and its always an edge on the upper catching the cap at one of the bends.


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Old 07-08-2013, 11:20 AM
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Return it - it should slide on nice & easy. Either your receiver is out of spec or the stock is - also be aware those stocks will make hamburger of your shoulder - the choates are better - m4 based better still for a collapsible
That said they do look cool & if you find one that fits. Get the Springfield buffer
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Old 07-08-2013, 1:51 PM
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you can see that I scratched up the end of the receiver a bit by trying to get the stock on

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Old 07-08-2013, 2:05 PM
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Call and email Adam at HKPARTS, he will make it right for you.
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Old 07-08-2013, 2:23 PM
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The picture explains exactly the area I was referring to above. Open the stock more so less of the rails are riding on the receiver during install. This will allow you to lift or twist a bit, the end cap in place.
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Old 07-08-2013, 2:34 PM
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I know what you were saying nitro, I scratched the receiver when I was trying with your method, the cup is just too tight. I appreciate the help though

Last edited by KCDS; 07-08-2013 at 2:37 PM..
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Old 07-08-2013, 3:17 PM
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Ok brother. Thanks, good luck. Wish I could be there to check it for you.
Take care
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Old 07-17-2013, 5:18 PM
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update: Talked to HKparts and sent the stock back, they looked at it and concluded the one I had might have been crushed a little at some point. They're senting me a new stock. Big thumps up for HKparts
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  #15  
Old 07-17-2013, 9:51 PM
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Cool deal. They're good folks. Report back when you get your new one and get it installed, and after you shoot with it . Sorry for my insistence that it would fit. I just have a bunch of time fooling with these and know they can be tricky and seemingly impossible to get on sometimes. It's weird. Sometimes they line right up and go right on, other times I have to futz with them a bit.


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  #16  
Old 07-17-2013, 10:40 PM
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no worries nitro
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