which mag block for my 9mm AR build???

[m4forme]

there are quite a few out there which is the best one...
i'm looking at the Hahn bottom loaded one from Brownells...
don't want to have to have to tap out the bolt release pin if i want
to switch back to .556...

thanks

[Mega]

I used the VM HY-Tech so I could use un-modified Uzi magazines.

http://www.brownells.com/.aspx/pid=19669/Product/AR_15_M16_9mm_MAG_BLOCK_ADAPTER

http://spinstage.http.internapcdn.net/Spinstage/userdocs/products/p_100001402_1.jpg

[m4forme]

the reviews were about 50/50...
it'll be going in my SBR'ed RRA lower...
have you had any issues with the one you have???

[Mega]

the reviews were about 50/50...
it'll be going in my SBR'ed RRA lower...
have you had any issues with the one you have???

I'll let you know once my Form 1 and Form 4 come back to me.
Mine will be a suppressed SBR in a S&W lower.

My builder recommended that block and has one in his gun.
His runs as smooth as a sewing machine. :)

[HeavyDuty]

I've been running a VM Hy-tech block for a bunch of years and several thousand rounds with absolutely no problems.

[wahoo95]

I went with the Hahn Bottom Mount Block and have had no issues. Makes for painless caliber swaps too.

[Layzieyegunman]

Bolt hold open feature was a huge deciding factor for me, I never liked the thought of having to wonder if my next squeeze was gonna be a click or a a shot, so I went with the RRA magwell adapter and set it a bit lower than flush with the top of the lower receiver. Using C- Products SS mags 32rnd with black follower and i couldnt ask for anything more beautiful.
In every way possible my gun runs flawless, and holds the bolt open so no dry firing and no extra bulky thing hanging out the bottom of the receiver. Just something to think about. I can post some vids if you guys wanna see it in action

[m4forme]

mag block this morning... Heard good things about them from some of the other boards... will post next week to report on how it works...