One Piece TDC Hop Up Chamber | Hi-Capa | TTI

One Piece TDC Hop Up Chamber – for your replica

This hop-up chamber is the heart of the hop-up system in your Hi-Capa pistol. The component ensures correct positioning of the hop-up rubber and, via the TDC (Top Dead Center) system, provides control over the hop-up pressure. A quality hop-up unit like this TTI version offers consistent BB flight and improved grouping. You replace the hop-up chamber when you seek more stability in your shooting performance or when the original unit shows play.

Technical specifications

The TTI hop-up chamber is fully CNC-machined from aluminium for maximum strength and durability. The TDC system uses a screw on the top side for direct pressure adjustment on the hop-up rubber, allowing for more precise tuning than traditional side adjustment wheels. The matte finish prevents reflections and the unit is available in various colours. The one-piece design eliminates potential play between parts.

Compatibility and application

This hop-up chamber fits Hi-Capa and 1911 models with TM specification, including the TM Hi-Capa 4.3, 5.1, Gold Match and standard 1911 variants. Compatible with replicas from Tokyo Marui, WE and AW Customs. The TDC system makes this unit suitable for both standard builds and high-performance setups. Installation requires basic knowledge of pistol disassembly and hop-up systems.

Ready to add the One Piece TDC Hop Up Chamber to your setup?