Ultra FPS & ROF: Configuration for the ARES TAR 21 Mechbox

This 2010 MAJOR UPDATE Ultra FPS & ROF series book is an extension to the Advanced Mechbox Guide marketed under the AirsoftPRESS brand name. With feedback from customers and reviewers we further develop the original mechbox guide to additionally cover manufacturer specific tech info for airsoft FPS/ROF optimization. The primary goal of this guide is to help you improve your electric airsoft AEG's FPS and ROF in cost effective ways. Different mechbox modification techniques are covered. Additionally, we address the issues of air tightness and battery configuration which are outside of the mechbox but are still highly relevant to the overall airsoft AEG performance.