Build items for 308 AR

[pstk5088]

I'll agree on using an A5 length receiver extension so you're able to use standard length carbine buffers. Armalite makes it even easier, as they have a relatively inexpensive kit that includes the extension, their spring, castle nut, H3 buffer, etc. I used this on my rifle length gas 18", no buffer or spring tuning needed.

https://www.armalite.com/product/ar1...extension-kit/

Currently sold out, but it can be sourced elsewhere.