AR upper questions?

[mastiffhound]

Sorry guys, but I'm still learning. If I get a 20" rifle upper do I have to do anything to my collapsible stock carbine lower besides change the buffer? Or do I even have to change the buffer? Do I have to change my buffer tube? Do I have to change the buffer spring? I would really like to keep the collapsible stock as it seems to me to be even handier with with the rifle upper.

 

[RCArms.com]

No change to the lower necessary unless you decide to run with an A1 or A2 fixed stock.

That change would require a different buffer, spring, tube combination to work.

Don

 

[mastiffhound]

Awesome, so I can keep that lower original! The guy at the gun shop told me I would have to buy the new tube, spring and buffler? Maybe he was just trying to make a bigger sale?

 

[RCArms.com]

In my opinion, the 20" uppers look kind of out of place on a Carbine lower with the tele-stock.

My favorite 20" set-up is the A1 pencil barrel Upper with an A1 buttstock. I am not a fan of the longer A2 Stock. Triangular A1 or Round A2 guards and you're good to go.

I like my 14.5 SBR and 16" carbines, but the 20" A1 is a range favorite.

Don

 

[Zerodefect]

You should be good to go. But a selection of heavier buffers may be a wise thing too invest in.

I like the Magpul ACS stock to even out the feel of a long barrel on a carbine lower. All my AR's have adjustable stocks. I use a different stock setting for prone/sitting/standing.