POTD: The New Heckler & Koch HK433 PDW 9”
Today’s Photo Of The Day has plenty of exclusive images of the Heckler & Koch HK433 PDW 9” in 5.56x45 NATO to share. This PDW is not published on HK’s website yet, and the only technical specification around was in German. We did our best to translate what’s going on over and under the metal and polymer.
Technical Specifications
Low-Maintenance, Reliable Weapon System
Designed for operation across a wide temperature range, compliant with NATO AC/225-D14 (High and Low Temperature Testing).
Modular Multi-Caliber Platform
Part of a unified multi-caliber system offering consistent handling across all calibers.
High Component Commonality
Maximized parts interchangeability within the multi-caliber family to streamline logistics, reduce spare parts inventory, and minimize maintenance and training costs.
Best of Both Worlds: G36 and HK416
Combines ergonomic, operational, accuracy, reliability, modularity, and safety features from the G36 and HK416 platforms.
User-Selectable Control Layout
Ambidextrous fire control system with selectable manual of arms:
G36/MP5-style paddle magazine release
HK416/AR-15-style push-button magazine release
Firing Pin Safety
Drop-tested and certified according to NATO AC/225-D14 standards.
NATO Ammunition Compatibility
Compliant with NATO AC/225-D14 for use with armor-piercing, ball, and tracer ammunition.
Safe in All States of Readiness
The firearm can be put on safe regardless of its loaded or not.
Over-the-Beach (OTB) Capability
Reliable function after submersion in water.
Ergonomic, User-Centric Design
Control elements placed for intuitive operation; adaptable components tailored to human body geometry.
Non-Reciprocating Charging Handle
Includes forward assist functionality; ambidextrous and tool-free swappable.
“Chamber Check Assist” Feature
Thumb rest marking and visual indicator on upper receiver allow chamber status check without extracting the cartridge.
Modular Stock Interface
Compatible with multiple stock options:
- Standard folding stock (folds to the right)
- Tactical helmet stock for short-visored helmets (folds to the right)
- Helmet stock for long-visored helmets (swivels left/right)
Low Sight Axis
Reduced sight height to minimize user exposure in covered positions.
NATO STANAG 4694 Accessory Rail
For mounting optics and targeting aids.
Handguard Options
Available in M-LOK or HKey OD configurations.
Two-Position, Tool-Free Adjustable Gas System
Optimized for suppressed and unsuppressed use.
If you think 9” is too long, there’s going to be a 7” version as well.
For more information go to: https://www.heckler-koch.com/en/Products/Military%20and%20Law%20Enforcement/Assault%20rifles/HK433
All images by the author.
Ex-Arctic Ranger. Competitive practical shooter and hunter with a European focus. Always ready to increase my collection of modern semi-automatics, optics, thermals and suppressors. TCCC Certified. Occasionaly seen in a 6x6 Bug Out Vehicle, always with a big smile.
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The magazine angle looks odd.
Know damn well it's gonna cost 5K. And they're a wee bit late to the market. The bloody thing was made almost a decade ago, and now there's ample competition, with brands that are more friendly to the civilian market.