Buffer for ultralight .308 AR

FizzyP

New member
I'm building an ultralight AR in .308 and need to figure out what buffer would be best for it. I have very little experience with the AR platform and need to understand how to balance an adjustable gas system with a lightweight BCG and choice of buffer. Important facts:

* I'm planning on a doing a lot of reloading, especially softer loads. I'd like to be able replicate 7.62x39. I'd also like to put together a subsonic load.
* I have a detent-adjustable gas block from SLR rifleworks that will let me turn the gas up/down/off. By turning the gas up I assume I'll be able to get the rifle to cycle with lower power ammunition.
* I have a lightweight BCG from JL Billet. It's titanium and weighs 10.5 oz.
* I'd like to be able to shoot full power loads too, and switch between ammo by adjusting the gas block.
* Preferably the buffer is as light as possible, but obviously the goals above + reliability are more important.

I'm hoping with the light BCG and ability to turn down the gas I'll be able to get the job done with a relatively light buffer. Any advice?
 
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