The T4E TC 68 is a full-auto .68 caliber CO₂ tactical carbine designed for training, law-enforcement simulation, and paintball/marker scenarios. Built with an AR-style design, it offers familiar ergonomics and ambidextrous usability for both left- and right-handed operators. The M-LOK handguard provides multiple mounting options for accessories, while the quick-detach (QD) interface on the stock adds further compatibility for customization.

Equipped with a 300 mm barrel, the TC 68 ensures stable performance and consistent trajectory. The muzzle is threaded (M22 × 1.5) for tracer units or compatible accessories, and the connection to the receiver through an Autococker thread simplifies upgrades and tuning. A dedicated pressure-relief valve protects the system during maintenance by venting remaining pressure safely.

The carbine includes a 20-round magazine supporting roundballs and precisionballs. An easily adjustable regulator maintains consistent energy output, offering reliable velocity and controlled accuracy. For paintball use, the TC 68 comes with a universal hopper adapter and a dummy magazine.

Power is supplied by an integrated 88 g CO₂ capsule located in the stock. Using the Quick-Piercing System, the capsule remains unpierced until activated by tapping the butt plate, allowing long-term storage without pressure loss. The system also supports optional upgrades such as a 200 bar HPA bottle or dual 12 g CO₂ capsules via adapters. An indicator on the stock shows whether the system is pressurized.

With a durable polymer body, efficient gas management, and a high level of modularity, the TC 68 stands out as a robust and versatile platform for training environments and tactical simulations.