07-27-2017, 07:24 PM
I'm shooting my BCA upper on a lower that has a Tubb's flat spring and Spikes H2 buffer. They seem to work great. I'm new to 6.5 so I don't have a comparison, but I didn't get any noise, or any noticeable issues with the buffer. There might be something better, dunno, but this seems good. The spring and buffer were a nice improvement with the stock .223 upper because it's a bit over-gassed.