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Miscellaneous 9MM AR Stuff

I’ve been getting a few emails and comments on the 9MM build. Most folks want to know why I want one. The reason is to fire at the indoor range. I want a rifle that mimics my 5.56 that I can take to CCA’s indoor range and get some practice with. Others have asked why bother since the performance of a 9MM is questionable. Well, according to one of the testers at AR15.com, a 9mm out of a 16 inch barrel exceeds 430 foot pounds, roughly equivalent to the 45 Colt and more powerful than a 45 ACP (both shot from handgun barrels, of course). Additionally, the ammo is cheap. For $11, I can get 100 rounds of Winchester White Box at Wal-Mart. Most importantly, because it will be fun.

The next question I usually get is what do I need to swap out my 5.56 AR to a Colt style 9MM system. Well, after looking at it, I decided it was better to just have a dedicated 9mm AR. To convert, you need magazines, a 9mm mag block, a 9mm upper half of the gun, a 9mm buffer (for a CAR stock, with an A2 stock it’s unnecessary), and a 9mm hammer. In other words, it’s not simply a matter of swapping out the upper receiver and will require push pins and partial disassembly of the fire control group and popping out the buffer. Now, if you look at it from the other side you realize that your 9mm parts are only lacking a lower receiver, a fire control group and a stock assembly to become a complete rifle. In other words, for a few extra dollars (around $200), you can have a dedicated rifle to eliminate the need for swapping out all the time.

Some folks tell me it sounds fun but they have no desire for a 9mm and want something with more oomph. Well, you’re in luck. Olympic makes ARs in 9mm and 40S&W that take Glock magazines. Now, they’re even making them in 45ACP and 10mm. Their site doesn’t list them but you can get them here.

And did I mention that pistol caliber carbines are just cool?

4 Responses to “Miscellaneous 9MM AR Stuff”

  1. Jed Says:

    I agree.

    I decided to get a RRA 9mm because I have a local indoor range I can go to over my lunch hour, and the nearest decent rifle-caliber range is about an hour away.

    Plus, it makes everyone else at the range jealous when I run the target all the way out, then shoot smiley faces on the Shoot-N-Cs.

  2. Jay G Says:

    Hmmm. One can get an AR variant in .45 ACP. This seriously elevates in my estimation.

    I may have to look into this. If I ever finish building my AK…

  3. Justin Buist Says:

    Ooo… music on a webpage that has nothing to do with music and no button to turn it off.

    That’ll lure ’em in!

  4. Resistance is futile! Says:

    Carnival of Cordite #47

    Hello, and welcome to the slightly delayed Carnival of Cordite. Before I say another word, I must apologize for the delay. However, when you read what I have been up to, I am sure you will forgive me. Before you