9mm AR, can someone inform me how/if a 9mm magblock and magazine lock work together

[12voltguy]

spikes mag blocks are nice

[that guy]

Featureless?

Which brand AR 9mm are you using? I have the Olympic K9 and had to give up on the Hahn mag well block (for Sten mags) because it had a AK like mag release. Would have violated the bullet button rule thing. Ended up using the proprietary Olympic 9mm mags which allowed me to use the AR bullet button.

You can run an Olympic upper with a sten magwell adapter block if you go featureless. Its a good option if you already have standard capacity sten mags. I went with a pinned stock, muzzle brake and a hammerhead. Tons of fun.

If you have an Olympic upper, make sure what ever lower or magwell block you use is compatible. The ejector is a wire spring built into the Olympic upper, while the colt pattern AR 9mm uses an ejector attached to the lower, often in the magwell adapter block. These two systems are not mix-n-match. Make sure that you have at least one, but no more than one ejector in your 9mm AR.

[Falstaff]

Plastic vs metal etc...


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heh heh how about "works vs. DOESNT work!" I couldnt get the plastic pro-mag to work for more than 2-3 rounds. I bought a RockRiver block (175) and it works fine.

I will sell my ProMag mag block for 20.00 shipped, maybe someone else can get it to work (paid 34 for it) Some people on ARFCOM claim the Promag block works, so maybe the problem was on my end...

[HappyCamper781]

I have a Hahn block on a dedicated lower w/ 9mm hammer and a Rock River Arms upper.

It will be at tonight's LAX range shoot.