A t2 buffer from spikes tactical- http://www.primaryarms.com/sla00t2/p/sla00t2/ A timney 3.5 pound pull single stage comoetition trigger- https://imgur.com/C4jW0QJ Heres my gun- https://imgur.com/7zTBRIw So the buffer is heavier so it helps with lowering the recoil and its filled with tungsten so its quieter. The trigger obviously is krisp and easy to pull witch helps with rapid fire and your acuracy. I have anti rotation pins coming in the mail and a nickel boron bcg from spikes tactical Edit: my kns anti rotation pins came in the mail last night and are already installed!