G&G TR16 GMS MK2 13.5"

TR16 GMS MK2 13.5" True Quick Change Spring via Buffer Tube Pre-Installed with GATE ASTER Full Metal Receiver with 13.5 Inch MK2 MLOK Hanguard Ambidextrous Fire Selector Switch and Magazine Release Includes Spring Change Tool, GOS-V15 Stock, and GOM V4 30R Magazine SpecsFeaturesOverview TR16 GMS MK II 13.5" True Quick Change Spring: True Quick Change Spring system allows you for easy, quick, and efficient spring swapping. The Game Master Series are designed for you to use a single tool, included with the gun, to quickly swap out the spring. Disassembly through removal of any screw is not necessary. Pre-installed with GATE ASTER: The GATE ASTER has an optical sensor for trigger sensitivity and sector gear positioning. This is fully programmable via GCS mobile app (plug sold separately). Includes the following settings: Precock, fire-selector options, active braking, and trigger sensitivity adjustment. Additionally includes a built-in diagnostic feature, for