Eagle6 Airsoft tests the Tokyo Marui MK18 NGRS Upgraded LvL 3 which fires at 345 fps on 0.20g BB and 260 fps on 0.32g BB. Scope of work for the upgrade covers Level 3 Internal Upgrade Package, Firefly Setup for Level 2, Deans mod and defuse, genuine Magpul CTR Stock, and extended butt pad hollowed out, plus + 2x 1300mah 7.4v lipos. Does it cost 900quid for the whole shebang? Better ask Richard.