The Umarex HDX Home Defense Extreme Marker is the ultimate solution for those whose looking for powerful, legal, and effective home defense.
Extreme situations demand extreme measures. The Umarex HDX Home Defense Extreme Marker T4E is a pump‑action .68‑caliber home‑defense marker built like a service rifle — full‑metal receiver, massive muzzle brake and a solid 3+ kg feel that adds stability and authority the moment it’s picked up. It’s designed for South African civilians and security professionals who need a powerful, legal, less‑lethal option that performs under stress.
Engineered to fire .68 rubber, pepper or powder rounds at up to 16 joules, the HDX delivers immediate stopping power without lethal force. The quick‑piercing CO₂ system keeps the marker on standby for months and readies it instantly with a light strike to the stock; an optical and tactile pressure indicator confirms you’re charged and ready. Intuitive pump action, single‑action trigger and a 16‑round internal tube make it fast and reliable in close quarters.
Whether you’re equipping a household, guard unit or security vehicle, the HDX balances intimidating presence with straightforward operation — law‑enforcement standards in a civilian‑legal package.
Features
| Feature | Benefit |
|---|---|
| Full‑metal receiver & heavy muzzle brake | Robust, stable platform that reduces recoil and feels authoritative |
| .68 calibre (T4E) | Compatible with rubber, pepper and powder rounds for less‑lethal options |
| 16 joules energy (E₀ < 16.0 J) | Strong stopping impact while remaining within legal less‑lethal limits |
| Quick‑piercing CO₂ system (2×12 g) | Keeps marker on standby for months; fast activation with a light strike |
| Internal 16‑round tube magazine | Ample capacity for close‑quarters engagement |
| Optical & tactile pressure indicator | Instant confirmation that the marker is charged and ready |
| Pump‑action, single action trigger | Simple, reliable operation under stress |
| >3 kg weight (3055 g) | Added heft for stability and accuracy in high‑stress use |
Specifications
| Specification | Value |
|---|---|
| Caliber | .68 (T4E) |
| Energy (E₀) | < 16.0 J |
| Magazine capacity | 16 rounds (internal tube) |
| Shot capacity | 20 rounds |
| Power source | 2 × 12 g CO₂ cartridges |
| Trigger | Single Action |
| Safety | Pushbutton Safety |
| Length | 896 mm |
| Weight | 3055 g |
Warranty
Our products are covered by a manufacturer’s warranty ranging from 6 months up to a lifetime, subject to the specific item. For detailed warranty information, kindly enquire with our support team.
South Africa: 1-3 Days
Free Shipping Over R2000
Shipping From R60
International: 2-5 Days
Perfect product, it fit perfectly into to my cz75 p07 CO2 pistol and this setup even turned my non Blowback into a Blowback pistol. It will work on the ASG STI duty one aswell as they use the same internal.
Work fine - sounds like 9mm bullets
Product works as expected and I appreciate the service.
Excellent service, great product and quick delivery.
Pleasant shopping experience - accurate and well presented - communication was 5star and delivery took 2 business days via the courier guy to my door. Item well packaged with gun case and extras I ordered.
Got my order faster than expected, product is as described
High quality, good mechanics
From ordering to delivery was effortless
Centurion D5 gate sensor ordered and delivered in time & well packaged.
Thank you for good service!
Good quality products at a reasonable price.
Excellent quality
Delivery times as promised
Great replacement remote that is Nova compatible. Easy to program.
Excellent service and price
Goods arrived quickly, perfectly packaged. A pleasant experience
Since the Centurion D5 isn't supported at all anymore by Centurion Systems, I bought this scarce item as a "backup" for the day I need it. (Along with refurbished D5 CP80 controller, from another supplier though.)
Much easier to replace just the gate sensor & harness - or CP80 - than de-wire / re-wire all connections than replacing the entire D5 gate motor!
Arrive perfectly & securely wrapped and courier service was very quick.
Thank you!
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Eligible returns may be accepted according to our returns policy.
Some items include supplier/manufacturer warranty coverage.
Yes — we ship across South Africa.
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