9mm AR Build

[1911Dave]

Any tips or advice before I start doing one. Still up in the air of doing a SBR or an AR pistol with a lower I am getting this week. Seeing if anyone here has done one yet and what I should look out for.

 

[MyTFAL]

Don't buy a cheap mag block, RRA Spikes or Hahn I wouldn't consider any others. 9mm buffer and hammer make things flow better as well.

 

[dixiejarhead]

I've got a complete upper with magwell block and mags for 9mm that I want to get rid of. PM me if interested. Magwell block is RRA.

 

[MyTFAL]

There you go rock on.....

 

[1911Dave]

Ok just ordered most of it today. Parts list as follows.

Spikes LPK
Spikes Lower receiver
Spikes buffer tube with T2 Buffer
RRA 9mm MagWell Block
RRA 9mm Forged A4 Upper Receiver Assembly
MetalForm 32rd 9mm AR-15 Magazine
MagPul MOE Enhanced Polymer Trigger Guard
CMMG 9mm Bolt/Carrier 100-004-363WB (able to use 5.56/.223 hammer with it)
Spikes LW BAR RAIL 7"
Noveske KX3 Flash Suppressor
BCM Mod 4 charging handle
Adco 7" 1/2x28 bbl

And I think thats it. I spend a few $ tonight

 

[George]

Get a ramped bcg. Then you dont have to worry about a 9mm hammer.

Sent from the bunker.

 

[George]

Also gwt some uzi mags and convert them. I bought 3 uzi mags for less than 1 c products or metal form mag.

Sent from the bunker.

 

[1911Dave]

Get a ramped bcg. Then you dont have to worry about a 9mm hammer.

Sent from the bunker.

I bought the one from CMMG that you can use your regular hammer.

 

[poor_shot]

I bought the one from CMMG that you can use your regular hammer.

just make sure your hammer does not have that small notch cut out of the front. it will alleviate an issue with the trigger being able to properly reset.

 

[1911Dave]

just make sure your hammer does not have that small notch cut out of the front. it will alleviate an issue with the trigger being able to properly reset.

It shouldnt. This is the one I went with

http://www.joeboboutfitters.com/PhotoGallery.asp?ProductCode=SP-SLPK101

 

[beauxdog]

DMH and I built 2 9mm ARs on Essential lowers. Both have RockRiver uppers and mag blocks. We had the bolt ramped so we could go back to standard hammers. We have never had a bit of problems out of either one. We both have MetalForm, C-Products and Uzi converted mags. I have 2 co-workers at the plant with the same builds using ASC mags and they are working fine as well. These little rifles are a hoot to play with, easy on the budget and very quiet compared to the .223 ammo. The biggest draw back is that they get very dirty since they are a blowback unit. But easly fixed with Gun Scrubber.
Enjoy your new rifle and don't forget to put some pics up when you get it completed.

Beauxdog

 

[1911Dave]

DMH and I built 2 9mm ARs on Essential lowers. Both have RockRiver uppers and mag blocks. We had the bolt ramped so we could go back to standard hammers. We have never had a bit of problems out of either one. We both have MetalForm, C-Products and Uzi converted mags. I have 2 co-workers at the plant with the same builds using ASC mags and they are working fine as well. These little rifles are a hoot to play with, easy on the budget and very quiet compared to the .223 ammo. The biggest draw back is that they get very dirty since they are a blowback unit. But easly fixed with Gun Scrubber.
Enjoy your new rifle and don't forget to put some pics up when you get it completed.

Beauxdog

Thanks man. Should have it hopefully done by this weekend. The barrel surprisingly shipped already this morning.

 

[dixiejarhead]

Thanks man. Should have it hopefully done by this weekend. The barrel surprisingly shipped already this morning.

Make sure the KX3 is threaded for the barrel and will work with 9mm diameter bullets. Most 9mm barrels are threaded 1/2 x 36.

 

[1911Dave]

Make sure the KX3 is threaded for the barrel and will work with 9mm diameter bullets. Most 9mm barrels are threaded 1/2 x 36.

Thanks man. I made sure it was though as I did some reading on that. Adco threads their barrels to order. Like I had said surprisingly it was already shipped out this morning. I saw quite a few people with them on 9mm and they say that the hole is plenty big enough for 9mm to pass through.

http://www.adcofirearms.com/itemdetails_q.cfm?inventorynumber=391

 

[dixiejarhead]

Thanks man. I made sure it was though as I did some reading on that. Adco threads their barrels to order. Like I had said surprisingly it was already shipped out this morning. I saw quite a few people with them on 9mm and they say that the hole is plenty big enough for 9mm to pass through.

http://www.adcofirearms.com/itemdetails_q.cfm?inventorynumber=391

Good deal! I just ordered a 10 MI rail gen 2 ss for mine. Going to rebuild it again for giggles... lol! You doing SBR or pistol?

 

[1911Dave]

Good deal! I just ordered a 10 MI rail gen 2 ss for mine. Going to rebuild it again for giggles... lol! You doing SBR or pistol?

Will end up doing a SBR. Pistol for now. Need to get the ball rolling on it though.

 

[dixiejarhead]

Will end up doing a SBR. Pistol for now. Need to get the ball rolling on it though.

Nice. I may rebuild mine into pistol now.

 

[1911Dave]

Some goodies started coming in today. Everything will be in by Friday

 

[dixiejarhead]

Is that mag block all the way into the lower?

 

[1911Dave]

Is that mag block all the way into the lower?

Oh no. Just barely put it in. Need to get a hex key to turn the bolt to get it all the way in. It shipped with the pins pushed out