MFP Autos Posted April 21, 2022 Report Share Posted April 21, 2022 (edited) Hi Folks, Found this weird extended length of pull A3 stock on a factory german mp5 PD gun. The gun is a factory german machine gun with all german parts so I *think* the stock is a factory German HK stock as well, but I've never seen this version of it before. The stock rails are longer and it doesn't close all the way. It looks like it's designed not to close all the way as the rails are not cut all the way back like most MP5 Stocks. Can anyone identify if this is a factory german stock? Thank you in advance for any info you can provide. Edited April 22, 2022 by MFP Autos Quote Link to comment Share on other sites More sharing options...
Got Uzi Posted April 21, 2022 Report Share Posted April 21, 2022 PM Sent Quote Link to comment Share on other sites More sharing options...
b_san Posted April 21, 2022 Report Share Posted April 21, 2022 (edited) Looks like an HK93 A3 stock to me... Edit: Nvm, missed that cutout on my phone... I thought the early universals had 3 notches though. Edited April 22, 2022 by b_san Quote Link to comment Share on other sites More sharing options...
Got Uzi Posted April 22, 2022 Report Share Posted April 22, 2022 With that cut out thats an HK "Universal" stock that could be used on the 9mm, 40 S&W, 10mm MP5's. The cut out is to clear the bolt hold open. They can be a bit longer than the normal MP5 A3 stocks. Quote Link to comment Share on other sites More sharing options...
MFP Autos Posted April 22, 2022 Author Report Share Posted April 22, 2022 2 hours ago, Got Uzi said: With that cut out thats an HK "Universal" stock that could be used on the 9mm, 40 S&W, 10mm MP5's. The cut out is to clear the bolt hold open. They can be a bit longer than the normal MP5 A3 stocks. Thank you for the info Sir. Is it common for these not to close all the way? The point you see the stock closed to is the full extent of travel. Quote Link to comment Share on other sites More sharing options...
mattnh Posted April 22, 2022 Report Share Posted April 22, 2022 (edited) Agree - that stock has a long "universal" 40/10 stock fork section. I don't believe that is an HK fork section - It is most likely aftermarket. The rest of the stock looks HK. It should close all the way & lock (if not on a gun). I'd ask this question over at HKpro - somebody here can likely identify the maker of that stock section. Edited April 22, 2022 by mattnh 1 Quote Link to comment Share on other sites More sharing options...
Got Uzi Posted April 22, 2022 Report Share Posted April 22, 2022 I've had some of these and they were HK. The OP and I were talking and he got them the same place I did and its safe to say it is an HK universal as they came out of the same place. Quote Link to comment Share on other sites More sharing options...
mattnh Posted April 22, 2022 Report Share Posted April 22, 2022 Dunno for sure, but the hole/loop on the fork section + no date code seems really odd to me. I'd post over at HKPro for a definitive answer (& full rundown on it if it is HK). 1 Quote Link to comment Share on other sites More sharing options...
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