RAM Rifle Umarex T4E TC 68 40J Full-Auto

Umarex TC 68 (also Tactical Carbine) caught our attention already at the IWA 2025 trade fair in Nuremberg. It is a multi-purpose CO2 rifle which, depending on the selected power version, can be used for self-defence, backyard training shooting or for paintball matches.

POWER

The TC 68 rifle is available in 7.5 J, 16 J and 40 J versions.

In the 7.5 J version it offers only semi-automatic (semi-auto) fire mode, where you have to pull the trigger for every shot.

The 16 J and 40 J versions offer fully automatic (full-auto) fire mode as well as the semi-auto mode, of course.

AMMUNITION

For ammunition you can use virtually any rubber, paintball or pepper .68 calibre projectiles (17.27 mm). The lower 20-round magazine is even compatible with non-spherical "precision" type projectiles to achieve better accuracy.

If you require higher ammunition capacity, you can use the supplied adapter to install any paintball hopper-type magazine. The package also includes a lower “dummy mag” magazine plug.

POWER SOURCE

This rifle is powered by a large 88 g CO2 cartridge, which is screwed into the rear part of the main block after removing the stock. The manufacturer states that one cartridge is enough for 250 full-power shots in the 7.5 J version, 180 shots in the 16 J version and 80 shots in the 40 J version. You can also use an adapter for 2x 12 g CO2 cartridges, which will reduce the power and number of shots, but offers the popular quick-activation system by striking the rear of the stock. A red indicator that pops out of the top of the stock when the system is pressurised informs you that the power unit is activated.

However, if you want to maximise performance and shot count, you can convert the rifle into a PCP air rifle by installing any 200 cc HPA bottle with regulator (with output pressure in the range from 800 up to a maximum of 1200 psi / 55 to 82 bar). Umarex offers a set of adapter and plastic buttpad as an optional accessory.

A welcome innovation from the manufacturer is the safety valve located in front of the stock. It allows you to safely depressurise the internal system of the gun while the cartridge itself remains pressurised. Although we still do not recommend leaving an activated CO2 cartridge installed longer than necessary (freezing carbon dioxide may over time damage the sealing O-rings of the valve), the valve comes in handy for maintenance or for short breaks during shooting. And if you use the above-mentioned HPA bottle instead of CO2 capsules, there is no risk of seal damage from exposure to freezing gas.

The second innovation is a power regulator located behind the grip, which allows you to regulate the gas flow from the cartridge into the gun. This enables you to set the power of the gun for different purposes – for example, to reduce power if you are going to a paintball match, or increase power for self-defence. The regulator cover also serves as a tool for turning it.

DESIGN

The 300 mm barrel of the rifle is mounted only on its own Autococker-type thread, so it can easily be removed for cleaning or replaced with a tuning barrel. At the end with M22x1.5 thread there is a metal mock muzzle brake, which you can for example replace with the Umarex T4E X-Tracer .68 tracer device.

The entire TC 68 rifle is based on the AR-15 platform, so you will find plenty of standardised components on it, such as an easily replaceable AR-15 grip, upper Picatinny rail, handguard with a number of M-LOK slots on the sides and bottom, ambidextrous fire selector, ambidextrous magazine catch and ambidextrous QD sling attachment point.

The internal frame of the rifle is of course made of metal and then covered with a lightweight impact-resistant polymer body. As a result, the TC 68 boasts a durable construction while keeping the overall weight at just 2900 grams.

Maintenance

Since the gun is powered by CO2 cartridges, the rubber seals may gradually become brittle and crack due to the freezing carbon dioxide. You can prevent this by occasionally applying a few drops of silicone oil to the neck of the inserted cartridge. At the same time, we do not recommend leaving an activated cartridge in the gun longer than necessary. If you know you will not be shooting for some time, release the pressure and remove the empty cartridge. This is not necessary when using an HPA compressed air system.

Our opinion: The tactical carbine TC 68 is the best RAM gun we have had here so far. It offers endless possibilities of use, adjustable power and you can use different types of power source. In addition, thanks to the AR-15 platform you can mount practically any commonly available accessory on it. This time Umarex has really outdone itself and from Balistas it gets a thumbs up.