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DMR Gearbox Upgrade Kit – 500 FPS | 2.2 Joules | Semi-Auto Only
DMR Gearbox Upgrade Kit – 500 FPS | 2.2 Joules | Semi-Auto Only
DMR Gearbox Kit | 500 FPS | 2.2 Joules | Semi-Auto Only
The DMR Gearbox Upgrade Kit is designed for airsoft designated marksman rifles (DMRs) that demand long-range precision, consistency, and semi-locked performance. This build is tuned to deliver 500 FPS (2.2 Joules) and utilizes only semi-automatic fire, making it ideal for regulated field play. Packed with premium components from Umbrella Armory .EU, G&G, SHS, Maxxpro, and Perun, this kit is built for elite-level outdoor performance.
Included Components:
- 1/1 Stainless Steel Cylinder
- 3/4 Stainless Steel Cylinder
- Anti-Reversal Latch (ARL)
- G&G ARL Springs
- G&G DMR Gearbox Core
- G&G G2 Gearbox Shell
- G&G G2 Selector Plate V2 (ETU)
- G&G Selector Gearset
- G&G Spring Guide
- G&G Tappet Plate + Spring
- SHS 18:1 Gearset – Semi-auto tuned
- Spring 135 – 500 FPS / 2.2 Joules
- Maxxpro CNC Aluminium Advanced Speed Trigger (Style B, Red)
- Perun Upgrade MOSFET Kit (ETU++)
- Umbrella 8mm Bearings
- Umbrella AOE-Corrected Piston with Piston Head
- X-Force V2 Cylinder Head
Compatibility:
Optimized for M4-based platforms using G&G G2 and DMR-specific gearbox shells. Tech experience is strongly recommended for correct install and field compliance.
Recommended for:
Snipers and marksman roles requiring elite FPS output, semi-auto reliability, and consistent long-range engagement power.
About Umbrella Armory
Umbrella Armory is a performance engineering workshop specializing in precision-tuned airsoft rifles and HPA systems. Founded in California and now operating in Austria, Umbrella Armory builds fully optimized replicas for competitive players who demand real ballistic consistency and reliability.
Every rifle is individually assembled, calibrated, and verified under live conditions to deliver perfect shot-to-shot accuracy and efficiency.
Umbrella Armory’s mission is to bring professional-grade performance to serious players worldwide — combining craftsmanship, testing, and innovation for the most consistent airsoft systems in the field.