NexxSpeed CNC Brass V2 Gas Hop-Up Unit – TM Hi-Capa / 1911

The NexxSpeed CNC Brass Hop-Up Chamber V2 is a precision-machined gas hop-up unit designed for Tokyo Marui–spec Hi-Capa and 1911 gas blowback pistols. Constructed entirely from CNC brass, this upgraded chamber focuses on stability, durability, and consistent hop pressure under gas operation. The V2 design incorporates a refined internal TDC-style adjustment system for controlled, repeatable tuning. This unit is intended for players seeking tighter tolerances and improved consistency compared to stock hop-up chambers.

Precision CNC Brass Construction: Machined from solid brass, the hop-up chamber provides increased mass and rigidity compared to aluminum or cast units. This helps maintain consistent alignment between the inner barrel and bucking under repeated gas cycling.

TDC Dial Hop Adjustment: The V2 design uses an internal top-down-center (TDC) hop ring with a threaded adjustment dial. Hop pressure is applied directly and evenly to the bucking through the built-in hop arm, allowing fine step-by-step adjustment from the lower center of the unit.

Improved Stability and Retention: Set-screw retention points help keep the hop-up chamber securely in place once installed. This reduces unwanted movement during operation and disassembly.

V2 Compatibility Improvements: Compared to earlier versions, the V2 chamber is designed to work with a wider range of TM-spec inner barrels and buckings, offering greater flexibility when tuning gas blowback pistols.

Why Choose This Hop-Up Unit?

• Designed specifically for Tokyo Marui–spec Hi-Capa and 1911 GBB pistols
• Solid CNC brass construction for durability and stability
• TDC-style hop adjustment with threaded dial
• Integrated hop arm for direct, even bucking pressure
• Step-by-step adjustment for precise tuning
• Set-screw retention to minimize chamber movement
• Improved compatibility over previous NexxSpeed versions

Specifications

Model Compatibility: Tokyo Marui–spec Hi-Capa 4.3 / 5.1 / Gold Match / TM 1911
Hop-Up Adjustment Type: TDC dial adjustment
Material: CNC brass
Finish / Color: Brass / gold tone
Includes: CNC brass hop-up chamber assembly with internal TDC hop ring, adjustment dial, integrated hop arm, springs, screws, and related components shown
Installation Notes: TM-spec drop-in design; minor fitting or adjustment may be required. Refer to included installation instructions.