View Full Version : Buffer question

12-12-2008, 10:20 AM
I ordered the following:
Magpul MOE Original Equipment Carbine Mil Spec, Complete Assembly (http://www.riflegear.com/p-423-magpul-moe-original-equipment-carbine-mil-spec-complete-assembly.aspx)

my question is about "carbine" in the name.

Am I fine to use a mid length upper, or do I need to stick with the carbine length?

This was an impulse buy that i didn't really think through. :43: damn BRD.

Edit: I should just be able to swap the spring and buffer if I want to run a ML upper right?

12-12-2008, 10:50 AM
It only applies to the tube/spring/buffer. You can use it just fine on a midlength-gased upper.

Midlength is ideal :)

12-12-2008, 11:35 AM
I've used a 24" bull barrel upper on a carbine setup lower with no problems.

12-12-2008, 12:20 PM
As mentioned it has nothing to do with the gas system, just the receiver extension type.

You're fine. Just use the regular carbine buffer.

04-05-2009, 9:44 PM
I've done some reading on this for the past hour or 2 for my next build (mid-length). So for and in addition from this thread, I gathered doesn't matter what stock you put in since it's about balance. For example, carbine stock on a 20" build though looks funny.

But I also read that somewhere that due to the high pressure of a carbine, you're BCG takes a beating. Doesn't that mean appropriate stock/buffer/spring combo? Like a carbine buffer system for a carbine build? (I'm assuming the short spring have tension/stiffness and heavier buffer for considerations?).

I guess my question is "aren't there at least some considerations to the buffer system" on what you're building. Mind you I already have a CTR on a carbine build and works fine. I was a little concerned putting a Vltor Carbine EMOD on a mid-length given the length of the buffer tube/buffer/spring. It'll be a 16 incher (though not sure if I want 18 for possible 3-gun in the future). I'm sure it'll be fine as many others have said in other threads. I cant' get out of my head that you're losing a little something with a short buffer/spring on a middy. Maybe I'm stuck on too much analysis paralysis here.

Here's a pic from Randall's response (http://www.calguns.net/calgunforum/showthread.php?t=120867&highlight=stock+midlength) http://ar15barrels.com/tech/stocks.jpg

Threads I've read (just some that were noteworthy posting)