Kriss USA KV453PWD00 Vector SDP Gen3 45 ACP 30+1 5.50" Black Nitride Threaded Barrel, M-LOK Handguard, Picatinny Rail Receiver & Rear, Black Polymer Grip, Ambidextrous, Glock Mag Compatible
The Kriss USA Vector SDP Gen3 in 45 ACP is a compact, modern submachine gun platform built for home defense, personal protection, and tactical training. If you've shot a Glock or trained with Glock-pattern magazines, you'll appreciate the Vector SDP's compatibility right out of the box—it feeds standard full-size Glock magazines and ships with one 30-round magazine. At 5.6 pounds and 15.35 inches collapsed, it balances control and maneuverability without sacrificing practical firepower.
The Gen3 SDP represents a complete redesign of the Vector chassis. The upper and lower housings have been reworked for modularity and ergonomics, giving you a wider, more supportive platform for both hands. The M-LOK handguard integrates seamlessly with a full-length Picatinny rail on top and a rear Picatinny rail for stocks or devices, letting you configure the gun to your needs. Ambidextrous controls—mag release, bolt release, and short-throw safety lever—make the Vector equally at home for left and right-handed shooters. The interchangeable grip system accepts both Kriss-spec grips and standard AR15/M16 pistol grips, so you can dial in your preferred ergonomics.
Reliability comes from a closed-bolt, delayed-blowback operating system and a 4140 chrome-moly barrel finished in QPQ black nitride (.578x28 RH threaded). The skeletonized trigger breaks at a single stage with minimal pre-travel, and the short charging handle includes a brass deflector for ambidextrous use. Field stripping is tool-free via four pins—a practical feature when you're cleaning after a long range session or training day.
Included in the box: the firearm, one 30-round magazine, cleaning kit, cable lock, user manual, and warranty card. Whether you're setting up for home defense, recreational shooting, or exploring the Vector platform, the SDP Gen3 delivers the accuracy, modularity, and magazine compatibility to get you running quickly.
Key Features
- 45 ACP, closed-bolt delayed-blowback operation
- 30-round Glock magazine compatible; feeds full-size Glock-pattern magazines
- 5.50-inch black nitride threaded barrel (.578x28 RH)
- M-LOK handguard with full-length Picatinny top rail and rear Picatinny rail
- Ambidextrous controls: mag release, bolt release, safety lever
- Interchangeable grip system: accepts Kriss grips and AR15/M16 pistol grips
- Skeletonized single-stage trigger with 0.7mm pre-travel
- Short charging handle with brass check deflector
- Tool-free 4-pin disassembly
- Redesigned Gen3 upper and lower housings for ergonomics and modularity
Specifications
| Caliber | 45 ACP |
| Action | Semi-automatic |
| Operating System | Closed-bolt delayed blowback |
| Barrel Length | 5.50 inches (139.7 mm) |
| Barrel Material | 4140 chrome-moly |
| Barrel Finish | Black nitride (QPQ) |
| Barrel Threading | .578x28 RH |
| Overall Length (Collapsed) | 15.35 inches (390 mm) |
| Weight | 5.6 lbs (2.5 kg) |
| Magazine Capacity | 30 rounds |
| Magazine Compatibility | Glock-pattern (full-size) |
| Trigger Type | Pivoting single-stage |
| Trigger Pre-Travel | 0.7 mm |
| Safety | Ambidextrous short-throw lever |
| Handguard | M-LOK |
| Top Rail | Full-length Picatinny (MIL-STD 1913) |
| Rear Rail | Picatinny (stock mount) |
| Grip | Black polymer; interchangeable (Kriss or AR15/M16 compatible) |
| Charging Handle | Short, ambidextrous with brass check |
| Disassembly | 4-pin tool-less |
Frequently Asked Questions
Is the Kriss Vector SDP Gen3 compatible with Glock magazines?
Yes. The Vector SDP Gen3 is designed to feed full-size Glock-pattern magazines. It ships with one 30-round magazine, and you can use any standard Glock mag you already own, making it easy to integrate into an existing Glock-centric setup.
What's included in the box?
The package includes the firearm, one 30-round magazine, a cleaning kit, a cable lock, a user manual, and a warranty card.
Can left-handed shooters use the Vector SDP Gen3?
Yes. The Vector SDP Gen3 features fully ambidextrous controls, including an ambidextrous magazine release, bolt release, and safety lever, making it equally functional for both left and right-handed shooters.
Can I swap the grip or add a different pistol grip?
Yes. The Vector SDP Gen3 has an interchangeable grip system that accepts both Kriss-specific grips and standard AR15/M16 pistol grips, allowing you to customize ergonomics to your preference.

