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There's nothing quite like the Vector in the pistol caliber market. KRISS built this thing around a genuinely different operating system, the Super V Recoil Mitigation System, which uses a closed-bolt delayed blowback design with a low-mass bolt carrier that redirects energy downward rather than rearward into your hands. Combined with the platform's naturally low bore axis, it produces a shooting experience where the gun pulses back rather than rising, making rapid follow-up shots on target noticeably easier than with a conventional .45 ACP blowback pistol. In Alpine White Cerakote, it's also one of the more distinctive-looking pistols you'll find at the range.
The SDP-E designation means this is the Enhanced version, which swaps in the MK5 modular rail system. That gives you a full-length 12-slot bottom rail plus M-LOK slots at 45-degree intervals around the handguard, so there's no shortage of real estate for lights, grips, or whatever accessories you're running. Up top, the full-length Picatinny rail handles optics, and the flip-up front and rear sights fold down completely out of the way when you go that route. The Gen 2 updates brought a redesigned pistol grip, smoother trigger, and a shorter 45-degree safety throw that's easier to disengage quickly under stress.
The 30-round capacity here comes courtesy of the KRISS MagEx2 extension kit, which builds on a factory Glock 21 magazine body. This is worth knowing because the base magazine is still a genuine Glock 21 pattern, meaning you get Glock's proven feeding reliability along with the extended capacity. The platform feeds from standard full-size Glock 21 magazines as well, which is a real advantage if you're already running a G21 or similar .45 ACP Glock as a sidearm. One thing to keep in mind: the 6.5-inch barrel is threaded in KRISS's M16x1 left-hand metric pattern rather than the more common US .578×28 standard, so if you're planning to run a suppressor, you'll want to verify your host adapter before you buy the can.
The end cap includes a QD sling mount, which makes a big difference in how this pistol handles given its size and weight. The pistol fieldstrips without tools using four takedown pins, and the ambidextrous safety and controls make it genuinely usable left or right handed. For range use, home defense, or as a high-capacity companion to a Glock 21, this is a platform that earns its premium.
The .45 ACP Vector is designed around Glock 21 pattern magazines, which means any standard full-size G21 mag will work in addition to KRISS's own MagEx2 extension kit. The 30-round capacity on this model comes from the MagEx2 extended baseplate and spring installed on a factory Glock 21 magazine body. This gives you the proven reliability of Glock's magazine design with significantly more capacity.
KRISS threads their .45 ACP Vector barrels in an M16x1 left-hand metric pattern, which is different from the .578×28 standard most American .45 suppressors and muzzle devices use. If you're planning to run a suppressor, make sure to verify your suppressor host's adapter compatibility before purchasing. Some suppressor manufacturers offer pistons or adapters for the KRISS thread pattern.
The Super V is a closed-bolt, delayed blowback system where the bolt carrier group and a low-mass inertia block travel downward into a recess behind the magazine well rather than straight rearward. This redirects most of the recoil energy down and away from the shooter instead of back into the hands. Combined with the Vector's naturally low bore axis, the practical effect is very little muzzle rise and a noticeably softer perceived recoil impulse compared to conventional blowback .45 pistols.
The SDP-E is the Enhanced version and the main difference is the rail system. The standard SDP ships with a simpler bottom rail setup, while the SDP-E includes the MK5 modular rail with a full 12-slot Picatinny bottom rail and M-LOK attachment points at multiple positions around the handguard. Both share the same Super V operating system, 6.5-inch threaded barrel, ambidextrous controls, and QD end cap.
Yes, it ships with a full-length Picatinny top rail that runs the length of the upper receiver and provides plenty of room for a red dot, holographic sight, or magnified optic. The flip-up iron sights fold flat when not in use, so they stay out of the way of a mounted optic but fold back up as backup sights if needed. Most standard Picatinny-mount optics will work without any additional hardware.
KRISS designed the Vector platform to fieldstrip without any tools, using four takedown pins to separate the main components. The process is straightforward once you've done it a couple of times and does not require punches or specialized equipment for routine maintenance. KRISS includes a cleaning kit with the pistol to get you started.
| UPC | 811607033588 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | KV45-PAP30 |
| Action | |
| Barrel Length | 6.5" |
| Caliber/Gauge | .45 ACP |
| Capacity | 30 |
| Color | Alpine White |
| Model | |
| Number of Magazines | 1 |
| Product Type | Pistol |
| Safety | Ambidextrous |
| Sights | Front/Rear Flip Sights |
| Sights Type | FLIP UP SIGHTS |
| ATF Type | Pistol |
| Length | 31.8 |
| Package Height | 3.9 |
| Package Width | 11.8 |
| Shipping Weight | 11.4 |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
| State Restriction (OR) | NO SALE TO OREGON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
| Units per Box | 1 |
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