Quote Originally Posted by n517rv View Post

I have not considered the A5 RE, but I'm certainly not opposed to it. I actually run those on all my AR15 builds. So you can run an A5 RE with just a "standard" Vltor A5 length buffer and a Springco Green spring? Is there a big benefit to running the A5 RE on a 308AR?.
You would use a Sprinco orange spring with a standard AR-15 Carbine length buffer. I use an H3 on my set up. The combination of the A5 extension and the standard carbine length buffer will compensate for the longer length of the 308 bolt carrier.