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AR15.COM
5/29/2013 7:27:31 PM EDT
I have a 10.5 SBR that I use as my work gun and I'd like to setup a CMMG dedicated .22 upper to allow me to train more.

I've looked on their site and though they offer a lot of options for 5.56 it seems you are limited on the setups for .22

Will CMMG sell me a .22 upper that has a DD or LaRue rail, flat top receiver and 10.5 or similar length barrel...??

I had them build me a 5.56 upper a few years back and it runs like a top.
5/30/2013 5:50:22 AM EDT
[#1]
Currently, the shortest .22lr barrel available is a 6.5"; mainly for those who want an SBR with a suppressor mounted to maintain the short profile with a suppressed training platform.  As for aftermarket hand guards, we unfortunately no longer offer them.  We do now offer our KeyMod hand guards in the .308 size, and very soon the carbine-length 5.56 size will be available.
5/30/2013 8:37:06 AM EDT
[#2]
Best bet is to build it your self.
Have a barrel cut by ADCO.
Use the CMMG stainless BCG, a must in my opinion.
Keep in mind, a .22 barrel has about 1.3" inside the receiver. So a 10.5" barrel is going to be short in a 10" hand guard.

It's very easy to build an upper with a minumum of tools.
Dave N
5/30/2013 2:22:31 PM EDT
[#3]
Quoted:
Best bet is to build it your self.
Have a barrel cut by ADCO.
Use the CMMG stainless BCG, a must in my opinion.
Keep in mind, a .22 barrel has about 1.3" inside the receiver. So a 10.5" barrel is going to be short in a 10" hand guard.

It's very easy to build an upper with a minumum of tools.
Dave N


Absolutely True.

Dave in Florida

5/30/2013 5:57:09 PM EDT
[#4]
Quoted:
Best bet is to build it your self.
Have a barrel cut by ADCO.
Use the CMMG stainless BCG, a must in my opinion.
Keep in mind, a .22 barrel has about 1.3" inside the receiver. So a 10.5" barrel is going to be short in a 10" hand guard.

It's very easy to build an upper with a minumum of tools.
Dave N


That is now my plan....!

A couple of questions as to a parts list.

Barrel. I'll probably order it from CMMG and have it cut, crowned and threaded at Adco. I currently own an Advanced Armament Scarab .22 supressor. I may keep an A1 birdcage on it most of the time but it would be nice to unscrew the A1 and install the Scarab occasionally. Any issues with threading compatibility you can think of..?

Stainless CMMG bolt setup..... Check

Upper Receiver? Does the CMMG bolt setup use a standard upper? I've looked at pics of some uppers using an abbreviated looking ejection port. Is this the case or do I just locate a quality built flat top upper receiver ( probably from CMMG) and I'm good to go?

Probably watch for a nice used rail system in EE and either an Aimpoint or Primary Arms T1 clone

What parts am I leaving out..?

What magazines would work the best in this setup? CMMG, Black Dog, etc....??

Thanks for all your help in this......
5/31/2013 4:37:28 AM EDT
[#5]
That is now my plan....!

A couple of questions as to a parts list.

Barrel. I'll probably order it from CMMG and have it cut, crowned and threaded at Adco. I currently own an Advanced Armament Scarab .22 supressor. I may keep an A1 birdcage on it most of the time but it would be nice to unscrew the A1 and install the Scarab occasionally. Any issues with threading compatibility you can think of..?
The barrel will be standard 1/2"x28 muzzle thread.
Stainless CMMG bolt setup..... Check
Absolutely the best...
Upper Receiver? Does the CMMG bolt setup use a standard upper? I've looked at pics of some uppers using an abbreviated looking ejection port. Is this the case or do I just locate a quality built flat top upper receiver ( probably from CMMG) and I'm good to go?
Standard Mil Spec Upper Receiver is Fine
Probably watch for a nice used rail system in EE and either an Aimpoint or Primary Arms T1 clone
Perfect.
What parts am I leaving out..?
Charging Handle, Possibly TACCOM reliability parts.
What magazines would work the best in this setup? CMMG, Black Dog, etc....??
I've had good luck with both. it's whatever you can find basically. Likely BDM.

Thanks for all your help in this......



SpecOps-13

6/1/2013 5:14:00 AM EDT
[#6]
I bought a CMMG .22 upper, sent the barrel off to be cut and threaded to 10.5" and put on a YHM diamond rail.

Mine is almost an exact duplicate of my duty weapon.
6/1/2013 10:24:59 AM EDT
[#7]


That's the plan....

This is my duty upper. I plan to clone it in .22
6/1/2013 12:51:27 PM EDT
[#8]


My duty and .22 training rigs.
6/2/2013 4:20:13 AM EDT
[#9]
I got with my buddy and ordered some of the CMMG parts for the build.

I went with the M4 profile barrel rather than the pencil to increase the weight some.

I'm gonna have Adco cut it at 11" probably.