Hop-Up chamber for S&T and Snow Wolf Kar98K (Ver.2026)

Metal upgrade Hop-Up chamber by T.N.T. Studio, new 2026 generation, designed for Snow Wolf Kar98K (SW 98K) airsoft rifles. The new design features more precise inner barrel positioning, a dual barrel retention system, TDC Hop-Up adjustment and revised BB feeding geometry.

The chamber is CNC-machined from aluminum alloy as a single piece. The rigid one-piece construction with precise tolerances reduces unwanted play and provides stable inner barrel positioning.

The inner barrel is secured using a dual retention system. Side-lock positioning ensures correct barrel alignment, while a clamp ring provides additional secure fixation. This results in more stable barrel positioning and minimizes unwanted movement.

The Hop-Up system uses TDC (Top Dead Center) adjustment, applying pressure from directly above to provide stable and consistent Hop-Up pressure. The revised feeding geometry also ensures correct BB positioning inside the chamber, contributing to more consistent shooting performance and a stable trajectory.

The package includes a dedicated T.N.T. H.L.R. SW 98K 60° Hop-Up bucking. The chamber requires this special T.N.T. bucking and is not designed for standard universal Hop-Up buckings. It is compatible with standard MARUI GBB-type inner barrels.

Features:

• New generation T.N.T. Hop-Up chamber for Snow Wolf Kar98K.
• Precision CNC-machined one-piece construction.
• Dual inner barrel retention system.
• Side-lock barrel positioning.
• Clamp-ring barrel fixation.
• TDC (Top Dead Center) Hop-Up adjustment.
• Revised BB feeding position for consistent BB alignment.
• Minimized inner barrel play.
• Compatible with MARUI GBB-type inner barrels.
• Dedicated H.L.R. 60° Hop-Up bucking included.

Compatibility:

• Snow Wolf Kar98K / SW 98K.
• MARUI GBB-standard inner barrels.

Important:
The Snow Wolf 98K and S&T 98K versions are not interchangeable. Please check the manufacturer and version of your rifle before ordering. This chamber is also not compatible with the VSR-11 system.

The chamber requires a dedicated T.N.T. SW 98K Hop-Up bucking. When replacing the bucking, use TNT-HLRRUB-SW98K-60.

Package includes:

• 1× T.N.T. SW 98K Hop-Up chamber.
• 1× T.N.T. H.L.R. SW 98K 60° Hop-Up bucking.

Installation:
Due to dimensional differences and manufacturing tolerances between different brands, minor fitting adjustments may be required during installation. For optimal performance, the manufacturer recommends installation by users with basic airsoft DIY experience or by a professional airsoft technician.