Jaeger Precision: Maruyama MP9 GBB
OptimusPrime
26 Nov 2025
Jaeger Precision unboxes and shares his initial overview of the Maruyama MP9 Gas Blowback SMG, comparing it to the older KWA model. This later-generation replica includes a suppressor and features an updated selector switch for safe/semi/full-auto and an ambidextrous magazine release. The key upgrade is the new, easily adjustable hop-up system, and the magazines are lightweight, hold 48 rounds, and are cross-compatible with other Maruyama SMGs.
During testing, the MP9 chronoed perfectly at 1 Joule with .3g BBs, demonstrating a punchy feel and good rate of fire. The reviewer praised the excellent build quality, sturdy stock, and the end-user-friendly suppressor that can hide a standard tracer unit. Despite a single complaint about a loose charging handle, he was highly impressed, deeming the MP9 an outstanding product straight out of the box.