Easily convertible 9mm mag blocks?

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[ARCHIVED THREAD] - Easily convertible 9mm mag blocks?

Posted: 2/15/2016 9:41:57 PM EDT

Are there any easily convertible 9mm mag blocks still in production? I'm looking for something I can pack in my range bag and swap my 223/556 over to 9mm quickly without having to punch out the bolt catch each time. Just pop on a new upper and slip in the block without the need for a hammer and punch. The VM HY Tech block seemed to fit the bill, but it seems like the production of them has been "discontinued" at the stores I've found.

Posted: 2/15/2016 10:23:33 PM EDT

[#1]

Hahn top loading block. Just slides in from the top when you need it and right back out when you don't. Only sacrifice is no bolt hold open.

Posted: 2/16/2016 4:38:07 PM EDT

[#2]

RRA is supposed to be like that. slides in from the bottom and has an allen wrench to tighten into place.

I managed to pick up a used spikes block that tightened in front and back.

Posted: 2/17/2016 11:55:28 AM EDT

[#3]

I've got a Hahn non-dedicated top loader, it's plug n play, just drops right in from the top. But I only run Metalform mags so can't say it will run reliably with anything else, since there's no up n down adjustment. And no LRHO.

Never used a bottom loader but every one I've seen has some up n down leeway so I wouldn't consider that a 'quick swap' unless you could quickly & relaibly re mount it at the same height every time. And you'd still need a tool to unscrew it.

Posted: 2/17/2016 10:45:02 PM EDT

[#4]

For what it is worth...I'm developing a 9 mm Bottom load......just got to finish a couple of other products first......

Posted: 2/17/2016 11:02:45 PM EDT

[#5]

As a 30yr Uzi owner come this March 16th,, I have Uzi mags galore, and this is how I roll to this day,, hard pressed to make me convert,, plain old Uzi mags

Posted: 2/18/2016 7:40:33 AM EDT

[#6]

I could remove and replace my Spikes block at the range. Have a dedicated build though, so no need. Might take some fiddling to get right, but IIRC, I eyeballed it the first time and it's been working ever since.

Posted: 2/18/2016 8:27:29 AM EDT

[#7]

I have a bottom load rra it goes in and out really easy and locks in with a post locking mechanism that only requires a lot Allen key. Takes about 30 seconds to set up. I haven't shot it yet but it hand cycles pretty well in random positions plan on test fire this weekend will report back

Posted: 2/23/2016 7:47:06 PM EDT

[#8]

I bought a used hahn dedicated block, butchered the he'll out of it, made it a top loading. I over did it and now it doesn't have bolt hold open. It's an option.

Posted: 2/24/2016 12:03:30 AM EDT

[#9]

What were these called and who actually made them? I don't think I've ever seen one for sale....

Quote History

Quoted:
As a 30yr Uzi owner come this March 16th,, I have Uzi mags galore, and this is how I roll to this day,, hard pressed to make me convert,, plain old Uzi mags

<a href="http://smg.photobucket.com/user/capttoyota/media/AR-15%20misc/PICT0194.jpg.html" target="_blank">http://img.photobucket.com/albums/v504/capttoyota/AR-15%20misc/PICT0194.jpg</a>

<a href="http://smg.photobucket.com/user/capttoyota/media/AR-15%20misc/PICT0195.jpg.html" target="_blank">http://img.photobucket.com/albums/v504/capttoyota/AR-15%20misc/PICT0195.jpg</a>

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Posted: 2/24/2016 9:03:40 AM EDT

[#10]

Quote History

Quoted:
What were these called and who actually made them? I don't think I've ever seen one for sale....

View Quote View All Quotes

View All Quotes

Quote History

Quoted:
What were these called and who actually made them? I don't think I've ever seen one for sale....

Quoted:
As a 30yr Uzi owner come this March 16th,, I have Uzi mags galore, and this is how I roll to this day,, hard pressed to make me convert,, plain old Uzi mags

<a href="http://smg.photobucket.com/user/capttoyota/media/AR-15%20misc/PICT0194.jpg.html" target="_blank">http://img.photobucket.com/albums/v504/capttoyota/AR-15%20misc/PICT0194.jpg</a>

<a href="http://smg.photobucket.com/user/capttoyota/media/AR-15%20misc/PICT0195.jpg.html" target="_blank">http://img.photobucket.com/albums/v504/capttoyota/AR-15%20misc/PICT0195.jpg</a>

They are discussed here:
http://www.ar15.com/forums/t_3_15/166968_VM_Hy_Tech___repairs_fitting____My_PICS_repaired_9_29_2008.html

They come up for sale occasionally. Generally about $250 last I looked.

[ARCHIVED THREAD] - Easily convertible 9mm mag blocks?

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