G&G TR16 GMS MK1/2

TR16 GMS MK1 9" True Quick Change Spring via Buffer Tube Pre-Installed with GATE ASTER Full Metal Receiver with 9 Inch MK1 MLOK Hanguard Ambidextrous Fire Selector Switch and Magazine Release Includes Spring Change Tool, GOS-V15 Stock, and GOM V4 30R Magazine