The TTI Infinity TDC Hop Up Chamber is a precision CNC machined upgrade for the Tokyo Marui Gen5 MOS and G19 gas blowback pistols. TDC (Top Dead Centre) adjustment lets you fine-tune hop both vertically and horizontally, delivering a more consistent backspin and a flatter, more accurate trajectory than the standard chamber.
Designed as a direct replacement, it is intended to drop into the compatible Marui platform with no permanent modification. We recommend installation by someone confident with gas pistol maintenance to get the best results. The payoff is sharper shot-to-shot consistency and quicker, easier hop tuning on the field.
