Kriss Vector Sdp G3 45Acp 5.5 Blk 30Rd

The Kriss Vector SDP Gen 3 in .45 ACP is a purpose-built defensive carbine that combines the stopping power of a full-size pistol round with the handling and control of a compact long gun. At just 5.6 lbs and collapsing to 15.35 inches, the SDP occupies the sweet spot between portability and shootability — ideal for home defense, vehicle storage, or close-quarters work where you need serious power without the bulk of a traditional rifle. If you've built an AR platform or run Glock mags, the Vector SDP's familiar controls and mag compatibility mean minimal learning curve.

The Gen 3 redesign focuses on modularity and user customization. The interchangeable AR15/M16-pattern pistol grip lets you fine-tune ergonomics to your hand, while the ambidextrous mag release and short-throw safety work equally well for lefties and righties. The skeletonized trigger has a short 0.7mm pre-travel, promoting clean, predictable breaks during defensive drills. Full-length Picatinny rails on top and a rear stock-mount rail mean you can mount optics, lights, and braces without compromise — build it the way your mission demands.

The Vector SDP runs on a closed-bolt delayed blowback system, feeding from standard full-size Glock magazines (one 30-round mag included). Its 5.5-inch 4140 chrome-moly barrel wears a durable black nitride finish and is threaded .578x28 RH for suppressor mounting. Field-stripping is refreshingly simple: the 4-pin tool-less disassembly gets you down to major components in seconds. Whether you're setting up a dedicated .45 ACP defensive platform or adding a compact, intuitive option to your safe, the Vector SDP Gen 3 rewards users who value control, modularity, and genuine stopping power in a surprisingly compact package.

Key Features

• Lightweight form factor at 5.6 lbs; collapses to 15.35 inches for compact storage and deployment
• Closed-bolt delayed blowback operating system optimized for .45 ACP ballistics
• Interchangeable AR15/M16 pistol grip and ambidextrous controls for left- and right-handed shooters
• Full-size Glock magazine compatibility (1×30-round mag included) — no adapter needed
• Skeletonized trigger with minimal pre-travel for crisp, controllable breaks
• Full-length top Picatinny rail and rear stock-mount rail for optics, lights, and accessories
• 4140 chrome-moly barrel with black nitride finish; threaded .578×28 RH for suppressors
• Tool-less 4-pin disassembly for field maintenance and cleaning

Specifications

Frequently Asked Questions

Will the Kriss Vector SDP accept standard Glock magazines?

Yes. The SDP is fed with full-size Glock-pattern magazines, so if you already run Glock mags in your other firearms, you can use the same ammunition source here. One 30-round magazine is included with the carbine.

Can I mount a suppressor on the Vector SDP?

Yes. The barrel is threaded .578×28 RH, so you can attach a .45 ACP suppressor with the appropriate adapter or direct-thread mount.

Is the pistol grip replaceable, and will AR15 grips fit?

The Vector SDP features an interchangeable AR15/M16-pattern pistol grip, so standard AR-platform grips will work. This lets you swap grips to match your hand size or ergonomic preference.

What's included in the box?

The Kriss Vector SDP Gen 3 comes with one 30-round magazine. You'll need to source a brace, stock, or other accessories separately to complete your build.