GDR series was born for force on force training

UPPER PARTS

GBLS DAS GDR H TYPE UPPER RECEIVER (U.S customer only)
GBLS H TYPE HANDGUARD
GBLS GMR 9.5" M-Lok HANDGUARD
GBLS GMR 13.5" M- LOK HANDGUARD
Full Length Upper Set GBLS DAS GDR 15
CQB Upper Set GBLS DAS GDR 15
GBLS CNC Steel Bolt Carrier Group
GBLS CNC Light Weight Bolt Carrier Set for GBLS DAS GDR 15
inner barrel holder (U-Clip for GDR chamber)
GBLS Air Seal Chamber Packing / AEG Hop Up Bucking (Hard Type)
https://www.youtube.com/watch?v=P-4ZlS9xLOg
Geissele M4 Barrel Nut for GBLS DAS GDR 15 (Only Airsoft)
BCM KMR Barrel nut for GBLS DAS GDR 15 (Only Airsoft)
DD MK18 barrel nut for GBLS DAS GDR 15 (Only Airsoft)
GBLS CNC (AL7075 –T6) HOP-UP Chamber Only for Dynamic Action System (DAS) GDR 15 – Silver
Main Spring for GDR15.
SUS Air Seal Nozzle (2019 Ver) for GBLS DAS GDR 15 Bolt Carrier.

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