AR buffer question

[RTDoug]

I bought a collapsible buttstock at the last 1500, and put it on my lower.

I am working on parts for the upper, or a whole upper if I find one, and have just realized I dont know which buffer I have in there.

How do you tell?

 

[shooter521]

If you bought the collapsible stock as a complete kit, it should've come with the correct buffer and spring. But just in case:

Carbine buffer:

Rifle buffer:

 

[redneckmedic]

 

[RTDoug]

cool

I had a brain fart and wondered if the buffer depended on the gas system, carbine, rifle, etc. and not stock length.

It functioned well with my 20 inch A2 upper!

Thanks fellers

 

[cosermann]

There is a "standard" and a "heavy" version of the carbine buffer, however. The "heavy" version cleverly has an "H" stamped on the face of the buffer. The other does not.

Some people prefer the heavy buffer because they think it improves reliability, but lots of folks run the standard buffer in their carbines just fine.

 

[JosephR]

There is a standard, a Heavy marked "H", a 2H, possibly a 3H IIRC and also several flavors for 9mm...

 

[shooter521]

There is a standard, a Heavy marked "H", a 2H, possibly a 3H IIRC and also several flavors for 9mm...

Yep.

And while the standard carbine buffer may "work just fine," the accepted wisdom is that you should run the heaviest buffer that allows your gun to cycle with the weakest ammo you regularly shoot, in order to reduce wear on internal components, smooth cycling and reduce recoil. For me, this is the 5.4oz 9mm buffer; I use it in all my carbines from my 16" mid-length Recon Carbine to my 10.5" LMT SBR (and of course my 9mm ). No function issues at all in the 5.56 carbines, even shooting Wolf and Bear ammo.

 

[slowmo]

Anyone use this?

Spikes Tactical ST-T2 heavy buffer

Just wondering if the "High Density Tungsten Powder" gave a noticeable difference from other heavy buffers?