.22lr drop in kits in AR platform

[kolbren]

Question for those who have experience with these drop in .22lr kits that CMMG/Stag arms/others make.

Do you need an operating gas system to cycle these kits or will just a plain barrel mounted (no gas blckk or tube) to an upper work?
Will these cycle with 7.5" pistol barrels?

Thanks in advance

[hotrodder636]

Why would you even be trying to run the setup without some form of gas block and tube?

[Onyx Z]

They are recoil operated, so technically, they will work with just about anything, gas tube/block or not. For as much as they cost, you can build a dedicated upper for not much more... waste of money if you ask me.

[kolbren]

I was going to build a .22 pistol upper on a budget. If I didn't need a gb and gt, it would save me a few bucks. I was never going to intend this build to fire 5.56/.223.

[GH41]

I was going to build a .22 pistol upper on a budget. If I didn't need a gb and gt, it would save me a few bucks. I was never going to intend this build to fire 5.56/.223.

What are you going to do with the gas port in the barrel?

[kolbren]

What are you going to do with the gas port in the barrel?

I didn't buy anything yet. I was planning on buying just a stripped barrel.

[hotrodder636]

Good luck...

[MegademiC]

I didn't buy anything yet. I was planning on buying just a stripped barrel.

There is usually still a gas port drilled out. You might be able to tap it, put in a screw to close it off, or maybe place a cheap gas block sideways to block it off.

[Dr Dues]

CMMG makes a "decent" dedicated 22LR barrel for the AR-15 platform.

I have one of their 4.5" barrels and use it with/without a suppressor. It's a fun upper to plink with and my sons have a blast.

I had a well used BCM upper and added the barrel and dedicated 22 unit that they sell. I have the occasional Failure to feed malfunctions with low-end ammo, but with Higher end ammo like WOLF Match Extra It runs very smooth.

I'm still partial to my Ruger 10/22, but this setup is fun!

[kolbren]

CMMG makes a "decent" dedicated 22LR barrel for the AR-15 platform.

I have one of their 4.5" barrels and use it with/without a suppressor. It's a fun upper to plink with and my sons have a blast.

I had a well used BCM upper and added the barrel and dedicated 22 unit that they sell. I have the occasional Failure to feed malfunctions with low-end ammo, but with Higher end ammo like WOLF Match Extra It runs very smooth.

I'm still partial to my Ruger 10/22, but this setup is fun!

I too have a 10/22 which I absolutely love. I was just looking for another fun plinker .22 in the form of a pistol. Didn't want to spend much. Going to look for a used pistol barrel for the build.