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.