TDI Vector-KRISS Vector Submachine Gun


TDI Vector-KRISS Vector
The TDI Vector or KRISS Vector series is a family of NFA and non-NFA weapons based upon the parent submachine gun design developed by KRISS USA. KRISS USA is formerly known as Transformational Defense Industries (TDI). The KRISS VECTOR is unique in that it utilizes an asymmetrical recoil and in-line design to reduce recoil and muzzle climb.

The Vector's action was originally developed by French engineer Renaud Kerbrat. This action, the so-called Kriss Super V, is an articulated mechanism which allows the block and bolt to recoil not just rearward like most other firearms, but back and then 'vectored' down off-axis along a rail system behind the weapon's magazine well. The Vector family of weapons is the first to use this action; the company claims the .45 ACP chambering was chosen to demonstrate that the action could "tame" such a powerful round. Variants chambered for the .40 S&W and 9x19mm Parabellum round are currently in development. All KRISS Vectors operate with standard Glock magazines with the .45 ACP caliber weapons using the 13 round G-21 magazine.

The Vector's barrel is in line with the shooter's shoulder as in the M16 rifle and German FG42, but also in line with the shooter's hand as with many target pistols. Combined, these factors reduce felt recoil and muzzle climb by eliminating the distance between the shooter's hand and the bore axis along with the action of the Super V Mechanism.

KRISS Vector
Type Submachine gun
Place of origin United States
Production history
Designed 2006
Manufacturer KRISS USA, Inc., formerly Transformational Defense Industries
Produced 2009-present
Variants SMG, CRB/SO (Carbine, Special Ops), SBR/SO (Short Barrel Rifle, Special Ops), SDP (Special Duty Pistol)
Weight 5.6 lb (2.5 kg) (SMG & SBR/SO)
5.9 lb (2.7 kg) (CRB/SO)
Length 24.3 in (620 mm) (SMG & SBR/SO)
16 in (410 mm) w/stock folded
34.8 in (880 mm) (CRB/SO)
26.5 in (670 mm) w/stock folded
Barrel length 5.5 in (140 mm) (SMG, SBR/SO, SDP)
16 in (410 mm) (CRB/SO)

Cartridge .45 ACP
, .40 S&W, 9x19mm Parabellum
Action Delayed Blowback, open bolt
Rate of fire SMG: 1100-1200 rounds per minute
Civilian models: semi-auto only
Effective range ~100 m
Feed system 13-round detachable box magazine
30 rounds w/optional extension
Sights Flip-up iron
MIL-STD-1913 rail provided for optics

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