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2/16/2012 4:23:35 PM EDT
Are they good to go?

What magazines do you use with them?
2/16/2012 9:01:43 PM EDT
[#1]
I have 2 ARs that use the Hahn mag adapters.

The first is a 45 acp that uses a Cavalry Arms lower.  The Cavalry Arms lower lets me use grease gun mags.  The Hahn adapter locks in and is 100% reliable.

My second PCC is another Cav Arms lower that uses a 9mm version Hahn mag block.  No screws to adjust––it goes in from the top and fits snug.  I have C Product mags that needed a little mod to raise the follower.  They now work 100%.

There are a couple of companies out there that make everything they do the best.  Hahn is one company.  Tros is another.  Their machining is superb!

JFCisme
2/17/2012 10:00:12 AM EDT
[#2]
Quoted:
Are they good to go?

I would say yes.

Quoted:
What magazines do you use with them?

Depends on which block you get.

Their colt style blocks seem to work best with Colt/Metalform mags or good quality modified Uzi mags and their Oly style blocks indicate Sten or grease gun mags depending on the block...
2/24/2012 5:33:37 PM EDT
[#3]
Hahn is good to go.  My dedicated block works fine with both Metalform & CProd mags.

Posted Via AR15.Com Mobile
2/26/2012 4:29:28 PM EDT
[#4]
I use a Hahn block with Sten mags. Never any problem. The slight mag wobble is a little something to get used to, but it works fine for me.
2/26/2012 6:07:18 PM EDT
[#5]
Can I get some more names for mag-block mfg's so I can contact them with my interest in a block that will run the factory Beretta 92 30 round mags.
I would like to build a 9mm/5.56mm AR pistol that can run off my supply of Beretta mags and not have to buy more mags for just one gun.
3/1/2012 10:11:31 AM EDT
[#6]
I'm running the Hahn drop-in top loader block with metalform mags, so far about 300 rounds with no failures of any kind. I regularly swap uppers so the block gets removed on a regular basis and it always works right. But there was another thread on the pistol caliber AR forum that someone said Ranier Arms isn't carrying Hahn blocks anymore. Brownell's still has some listed as available, but isn't carrying every version. I may be wrong, but I thought that Hahn is the only magwell block that has feed ramps.
3/1/2012 10:18:57 AM EDT
[#7]
The Hahn block is pretty much the Cadillac of mag blocks. And I'm a Cadillac guy.
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