AR Question

[Gadsden]

I think I know the answer, but I don't want to assume I'm right and just go ahead and do it. I have a Direct Impingement (Piston-Driven) rifle that I do most of my shooting with. I also have a Gas-Operated Upper sitting around doing nothing that I'd like to get some use out of. My question is, can switch out the uppers and put the Gas-Operated Upper on the Lower of my Piston-Operated rifle? I'm guessing the answer is gonna be yes because I can't see what difference how the upper functions would make to the lower, but before I just go ahead and do it I'd like to see if anyone here has done it and/or knows the answer.

 

[L.C.]

Yes

 

[O4L]

You have DI confused with a piston system.

But yes, you can switch uppers.

 

[Gadsden]

You have DI confused with a piston system.

View attachment 384170

View attachment 384171

But yes, you can switch uppers.

Okay, good to know. Thank you!

 

[mr ed]

All the lower does is hold the mag and whack the firing pin.
It doesn't care about gas or piston driven.

 

[BowhunterOK]

The short answer is yes you can, but you may want to check the buffer/spring combo first. I have a number of AR's and 2 piston LWRC's. The LWRC's, which are piston, have different weight springs/buffers than what I normally run with my normal gas ones. I'd have to weight them to see which buffer they are, but they came with the piston uppers. So I just switch them out when I swap uppers.

 

[Gadsden]

The short answer is yes you can, but you may want to check the buffer/spring combo first. I have a number of AR's and 2 piston LWRC's. The LWRC's, which are piston, have different weight springs/buffers than what I normally run with my normal gas ones. I'd have to weight them to see which buffer they are, but they came with the piston uppers. So I just switch them out when I swap uppers.

Thank you, I guess I should have included this in my question, but the rifle I'm referring to is a LWRC.

 

[BowhunterOK]

Thank you, I guess I should have included this in my question, but the rifle I'm referring to is a LWRC.

That's good to know as well. As I mentioned, I purchased 2 LWRC compete uppers when they were on sale. And they included their own buffer and spring with it as well. I've moved them to different lowers, but have also moved the springs and buffer as well with them. I did just check mine and it has an H-2 buffer which would run fine in virtually any carbine. So that would even make it easier to swap to another lower.