For many shooters, the KRISS® Vector is a bit of an enigma. Since its release in 2007, it hasn’t really hit the main stream as the be all end all of submachine gun platforms. However, the cool factor is clearly off the scale. This gun is no gimmick either. The unique action of this weapon reduces the significant recoil of the .45 ACP to something similar to a 9mm. It accomplishes this by cycling the force of the ejection system downward instead of backward. This reduces muzzle rise, as well as increasing accuracy. The KRISS Vector spent a long while in development. They continually tweaked and updated the weapon through the design and testing process until they had something functional, new, inventive, and game changing.
You can purchase the Vector is several configurations. KRISS USA was nice enough to send us the pistol version for testing. KRISS chambered the Vector SDP in .45 ACP. The magazines are Glock model 21s with a standard 13-round capacity. An adapter is available that increases the capacity to 30 rounds. This chambering puts the Vector at the top of a list of submachine guns that would make close quarters combat a one-sided event for the operator. The .45 has a reputation for being a man stopper, and previous submachine guns tried to tame it. The Thompson, arguably, was a fairly successful attempt at a .45 submachine gun. However, the weapon was complicated, expensive, and very hard to control on full auto. The KRISS Vector fixes many of the problems associated with a submachine gun of that caliber, and makes it very easy to shoot.
The Vector is an extremely fast weapon to control in tight spaces. When you turn a corner, your gun will be there right when you are. The small size makes it ideal for this application.
The pistol version is equipped with a 13-inch Picatinny rail on top, and another 3.25-inch rail under the barrel. Above the barrel is a receptacle made to hold a SureFire flashlight. The SDP came equipped with an excellent set of adjustable folding sights. The barrel has a threaded muzzle for attachment of a sound or flash suppressor, muzzle brake. However it has left-hand threads, so keep that in mind while ordering accessories. The lower receiver is made of steel and aluminum with a reinforced polymer outer shell. The upper is aluminum with a matte black anodized finish to match the lower. The fire control parts are contained in the upper receiver, and the hammer swings forward and downward to strike the firing pin, keeping the bore at a lower axis. KRISS placed the folding charging handle on the left side, which does not reciprocate with the bolt. By lifting the charging handle, but not pulling rearward, the operator can easily do a visual check of the chamber to determine whether it is loaded. On the left side, above the magazine well, is the bolt lock and bolt release; both are easy to operate. The trigger pull is very smooth as well, making shooting it a breeze.
During testing, the KRISS Vector SDP functioned flawlessly. It fired every type of ammo we fed it with no issues. The reliable and familiar Glock magazines made loading a snap, and we cycled round after round with ease. Accuracy was good, and the unique action of the Vector made recoil a non-issue. Follow-up shots were quick and to point of aim and we had no trouble manipulating the controls.
For close quarters battle, there is little that could stand up to the efficient power of the KRISS Vector SDP. While a little pricey for some, they stand as an obtainable submachine gun that fills the role nicely of a fast, reliable, and deadly firearm.
Specifications and Features
- Closed bolt, delayed-blowback KRISS Super V System
- .45 ACP
- Ambidextrous Fire/Safe settings
- Meets/exceeds TOPS/MILSTD 810F
- Advanced metal components: A2 and 4340/4140 chrome-moly steel alloys heat hardened/manganese phosphate treated with aerospace 7075/6061 hard-anodized aluminum alloys
- Aerospace polymer components: Lightweight injection molded housings of 15% fiber-reinforced Ultramid™ Nylon 6/6 composite alloy treated for toughness and environmental protection
- Full line of KRISS accessories including M16x1 LH barrel threads and suppressor
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