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What is reversed in a "reverse stretch"?

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7.2K views 15 replies 10 participants last post by  Shattered Mind  
#1 ·
Newbie question here... I've been reading up trying to understand what exactly is a "reverse stretch". So far my understanding is that it's a special creation by Dakota Tactical where a regular MP5 receiver is modified by shortening the front end so that MP5-K hand guards/vertical grips and cocking handles can be used.

What exactly is reversed and/or stretched? To me it seems that it's more like a MP5 "front-end shrink" than anything else.
Maybe I'm wrong... Is this really a MP5-K receiver with an added extension to take MP5 stocks?

I'm not trying to be silly or offensive, I'm just genuinely confused (I'm new to the HK scene) and honestly trying to understand things. It's so difficult since many of the abbreviations in use on this board are non-standard or specific only the particular thread. Heck, just yesterday I realized that Black Market Parts is a brand name! And here I thought people had some sort of underground connection... Anway, thanks in advance for helping this newbie understand the wonderful world of roller-locked clones.
 
#4 ·
Many builders make reverse stretches, not just Dakota Tactical. See pic below. The only difference from a K gun to a reverse stretch is that the rear of the receiver is about 1/2" longer and there is the ability to add A2 and A3 stocks without modification or adapters. Also, you can use a regular MP5 lower instead of a K lower.

DJFs Guns:

Image


Image
 
#5 ·
Well since nobody actually answered your question, I'll give it a go...

Traditionally, in the olden days, a "stretch" was taking an SP89 and modifying it to be longer and more like a full sized MP5/HK94. So that's the history of a "stretch" design. I think it was popular because the HK94 got banned before the SP89 and the guys getting the SP89 were just trying to make do with whatever they could get... so they stretched the SP89. See, get it...

Nowadays, things have changed a little. So the reverse stretch is more of a squeeze design. They start out with a full size MP5/HK94 type receiver and make it shorter. That's why it's a "reverse" stretch. In some weird sense of tradition, they kept using the word "stretch" as an indication of changing the length of a receiver/gun, not specifically limited to making them longer. So the "reverse stretch" title caught on, meaning the opposite of a stretch. :)

But maybe I'm all full of crap. I'm sure someone will be along very soon to point that out... as usual. :biggrin:
 
#10 ·
... But maybe I'm all full of crap. I'm sure someone will be along very soon to point that out... as usual. :biggrin:
No, you're not. You're completely correct and just saved me a lot of typing. Only thing you left out was who offered it first... and I'll allow you to answer that... if you can.