View Full Version : Need Help with a 9mm build

11-16-2007, 2:22 PM
Ok I am new to building up AR's

I am building a 9mm but I don't have all the peices. I am looking for some guidance on what else I need to buy. here is what I have.

1. RRA 5.56 Lower LAR-15 (Stripped)
2. RRA 9mm upper
3. RRA Standard Lower Parts kit

Whay I think I need
1. Stock - But which one? For this purpose lets say a standard 6 position
2. Mag Well conversion to 9mm mags
3. Some kind of Mag lock device
4. 9mm hammer

Other stuff I dont know about:

1 Buffer?
2 Spacer?
3 Action Spring?

Please help... thanks.


11-16-2007, 6:00 PM
Try checking out http://www.tenpercentfirearms.com/index.php?main_page=product_info&cPath=16_25_26&products_id=70 . That's where I got the information to build mine. Wes at Ten Percent usually has all of the parts in stock.

11-16-2007, 6:33 PM
you have nearly everything. for a build with a 6pos stock, all you need is: 9mm hammer, RRA or Hahn mag block, 9mm buffer, and a mag lock device of your choice. that's it. no need for a different spring. you only need a spacer if using a rifle-length buffer tube.

you can get these parts at a lot of different places: rainier arms, rb precision, adco firearms, cws, PK firearms (maybe), global tactical supply (maybe), bravo company (maybe).

11-17-2007, 6:20 AM
Thanks for the info.