Elbee Tactical does an upgrade on his Tokyo Marui MWS Gas Blowback Rifle... "In this video, we take a deep dive into upgrading the internals of the Tokyo Marui MWS GBB rifle. I install a Guns Modify lightweight bolt carrier, drop in a BAVTAC Titanium Z-Plate, and fine-tune power using the FEDA adjustable NPAS valve.

From full disassembly to testing — you’ll see every step of the way.