Does HK MP5A3 Collapsible Stock Meet Minimum 29" OAL Requirement?

[fred333]

This is obviously the shorter A3 stock, and I'm not 100% sure on muzzle location (it's a pinned faux suppressor over a 3-lug and threads), but this lands around 25.5" OAL.
Anyone know what the F model stock adds?

I believe the F stock's ~1.5" longer, but I could be wrong.
And I appreciate your posting the photo, which is helpful.

Here's a comparison of the A3 vs F stocks (F on bottom)

 

[smdub]

AAC TiRant 3-lug adapter in stock (as of an hour ago)! I ordered mine, if you want one I suggest to order it quick! I've been waiting darn near a year to catch these things back in stock. I might have even ordered an extra one w/ my rebates

https://www.advanced-armament.com/Triad-adapter-for-Ti-Rant-silencers_p_671.html

 

[fred333]

AAC TiRant 3-lug adapter in stock (as of an hour ago)! I ordered mine, if you want one I suggest to order it quick!

Done....and thanks for the tip. I'd just checked last night and they were still out of stock!

 

[schnejerator]

I might have even ordered an extra one w/ my rebates

Finally found something to do with that Damn the Man cash?

 

[smdub]

Finally found something to do with that Damn the Man cash?

That's EXACTLY why. Had a couple of them to use up.

 

[MudPhud]

Thanks for the heads up on the Triad 3-lug adapter, smdub! Just like fred333, I checked earlier this week, and they were still listed as out of stock.

And a favor to ask from those able to measure directly...

What is the actual length between the TIP of the muzzle on a non-threaded 3-lug 8.9" MP5/clone and the CENTER of the rear push pin hole (to which all the various buttstock variants attach)? Before committing to a SBR project (don't even have a pistol clone yet), I am curious as to what additional length at the rear is still required to get to >29" OAL without permanently welding anything to the muzzle. I am asking about the full size MP5, not the MP5K.

Many thanks in advance!

 

[fred333]

UPDATE: Form 1's in process (via eFile) and if ATF's current four month processing time is correct, I should have the stamp in February. Once I've got the stamp in hand, the FFL's gunsmith will implant a bit o' additional metal into an "F" stock to maintain the original collapsing function and OEM appearance, and placate the Maryland law makers' 29" OAL mandate.

In the meantime (whilst awaiting the stamp), I've got a nice single-point sling and an MP5 end cap with a single ring mount, which outta provide a pretty stable platform.
I'll update with photos at the end of the month (when I receive the gun).

 

[schnejerator]

Looking forward to it. I should have you beat!

 

[schnejerator]

P.S. What length did you put? I listed 29.1.

 

[fred333]

29.25"

 

[fred333]

Here's an UPDATE on my adventures through the minefield of 29" OAL stock options for the MP5:

The bad news: Both gunsmiths ultimately decided that while they can copy/paste (i.e., cut/weld) the needed additional length into the F-style collapsible stock, they didn't feel the weld would be sufficiently strong to hold up. So, in the end, both declined to do the work.
So, with vanishing options, I had to shift to Plan B: Keep and install the [proper] F-style collapsible stock when shooting outside Maryland (I often shoot at the NRA range) and find a longer stock option for use in my (current) home state.

The < bad news: I found an AR/M4-style stock that doesn't look too dick tacked onto the MP5's tail and allows her to reach the 29.25" OAL minimum as cited on the form 1.
On the more positive side, the M4 stock's considerably more comfortable than the HK collapsible.

The bottom line: Regardless of best intentions and how many times you measure before cutting, there's always something that mucks your plan up.

Thoughts on the Maryland version?

 

[cap6888]

If you are setting on an AR stock, how about MFT Minimalist? I like the looks of them and they might be a little more sub gun-ish.

 

[The sphinx]

Man that is awesome Fred.

 

[fred333]

If you are setting on an AR stock, how about MFT Minimalist? I like the looks of them and they might be a little more sub gun-ish.

Thanks and I did look at the MFT, but it wasn't long enough. The Magpul I ended up with (purchase's been made, so it's too late for alternatives) is slightly longer and just made it with the castle nut/tube held in by only a few threads (literally, just enough to retain and stabilize the stock!).

Man that is awesome Fred.

Thank you! I appreciate the support.

 

[outrider58]

That just looks wrong...but, what ever gets you through the night...

 

[fred333]

That just looks wrong...but, what ever gets you through the night...

I agree, but, when forced to turn HK's 27" OAL work of art into a 29" OAL nanny-state requirement....well, you gotta do what ya gotta do. And she'll only look dicked-up when I shoot'r in our dicked-up state. When I shoot in VA, she'll be kitted-out with the proper F-style stock.

 

[LeadSled1]

I wonder is something like the NEA CCS stock would fit with the buffer tube mount?

 

[fred333]

I wonder is something like the NEA CCS stock would fit with the buffer tube mount?

Kinda redundant now (I alreadys paids my money 'n' gots my stuff) and it's difficult to tell from the photos, but the NEA looks a bit too short anyway. I appreciate the suggestion tho'.

 

[outrider58]

I agree, but, when forced to turn HK's 27" OAL work of art into a 29" OAL nanny-state requirement....well, you gotta do what ya gotta do. And she'll only look dicked-up when I shoot'r in our dicked-up state. When I shoot in VA, she'll be kitted-out with the proper F-style stock.

Good work though.

 

[MudPhud]

Congrats Fred,

For those wondering, an 8.9" MP5 SBR can get to ~29.5" OAL in Maryland with...

1. HKPARTS.net AR adapter, http://www.hkparts.net/shop/pc/AR-M4-Stock-Adapter-MP5-93-33-83p17118.htm

2. VLTOR A5 or BCM intermediate receiver extension (longer than standard), http://www.bravocompanyusa.com/BCM-...nsion-A5-Buffer-Tub-p/bcm-intermediate-re.htm

3. Mission First Tactical Battlelink Minimalist stock, http://www.midwayusa.com/product/28...malist-stock-collapsible-ar-15-lr-308-polymer

Alternative parts may also get you there, but I know for a fact that the aforementioned ones will. One consolation is that the USA-made stock in these configurations will grant you +1 922(r) compliance parts.