KRISS Vector SBR Gen 3 .45 ACP 5.5" Barrel 30rd Glock Mag Compatible Black Short Barrel Rifle

The KRISS Vector Gen 3 SBR in .45 ACP delivers the most compact rifle-format performance in the Vector series while chambering the proven .45 ACP cartridge for maximum stopping power. The 5.5-inch barrel combined with ambidextrous telescopic folding stock provides fast handling and smooth transitions across multiple targets. The revolutionary Super V Recoil Mitigation System redirects recoil forces downward rather than backward, dramatically reducing muzzle rise and enabling rapid follow-up shots with the hard-hitting .45 ACP cartridge.

Combined with the world's lowest bore axis—positioned in line with the shooter's second knuckle—the Vector SBR provides mechanical advantage over recoil forces that conventional firearms cannot match. The updated Gen 3 upper supports aftermarket pistol grips while the refreshed lower housing enhances ergonomics and hand support. Compatible with full-size Glock .45 ACP magazines, the Gen 3 SBR ensures reliable feeding with high-capacity options. Ships with one 30-round magazine, cleaning kit, cable lock, user manual, and warranty card.

Patented Super V Recoil Mitigation System

The KRISS Vector's revolutionary Super V System is a delayed blowback operating system featuring a small bolt carrier group connected to a low-mass slider guided by channels in the frame that run perpendicular to the barrel. As the bolt cycles, the system redirects recoil energy downward rather than straight back into the shooter's shoulder. This downward-directed energy becomes a counterweight to the barrel's natural tendency to rise when fired, dramatically reducing muzzle climb even with the substantial recoil of .45 ACP. This enables the shooter to stay on target through rapid strings of fire with a cartridge that would otherwise be difficult to control in full-auto or rapid semi-auto.

World's Lowest Bore Axis

The Vector features the lowest bore axis of any firearm in the world. The barrel is situated below the fire control group, positioned in line with the second knuckle of the dominant hand rather than high above it as with conventional designs. This placement gives the operator mechanical advantage over recoil forces, as the recoil impulse pushes straight back through the hand rather than creating a lever arm that rotates the muzzle upward. With .45 ACP's substantial recoil energy, this design advantage becomes even more pronounced, delivering flat shooting characteristics that keep sights on target.

.45 ACP Stopping Power

Chambered in .45 ACP, the Vector SBR delivers proven manstopping power with the time-tested cartridge trusted by military and law enforcement for over a century. The .45 ACP's 230-grain projectile at 850+ fps from the 5.5-inch barrel provides substantial energy transfer and penetration, making the Vector SBR effective for defensive applications where immediate incapacitation is critical.

Compact SBR Configuration

The 5.5-inch barrel provides maximum compactness for close-quarters maneuvering. The ambidextrous telescopic folding stock collapses from 26.2 inches extended to 24.25 inches collapsed, enabling proper length of pull adjustments and ultra-compact storage or transport. This combination delivers rifle stability and control in a package barely larger than a handgun.

Gen 3 Improvements

The Gen 3 upper supports aftermarket pistol grips, providing customization options to match shooter preferences and hand size. The refreshed lower housing enhances ergonomics with improved hand support positioning and refined grip angles. These updates improve shooting comfort during extended sessions while maintaining the Vector's distinctive appearance.

Glock Magazine Compatibility

The Vector SBR accepts full-size Glock .45 ACP magazines, ensuring reliable feeding with proven magazine designs. This compatibility provides flexibility with capacity options and eliminates proprietary magazine concerns. Ships with one 30-round magazine for extended shooting sessions.

4140 Chrome Moly Barrel with Black Nitride Finish

The 5.5-inch barrel is machined from 4140 chrome moly steel and treated with QPQ black nitride finish for exceptional corrosion resistance and wear characteristics. The barrel features .578x28 right-hand threading for suppressor or muzzle device attachment.

Pivoting Single-Stage Trigger

The pivoting single-stage trigger provides consistent pull characteristics and clean break for accurate shot placement. The trigger design accommodates the Vector's unique fire control group positioning below the barrel.

Ambidextrous Folding Stock

The KRISS ambidextrous telescopic folding stock serves both right and left-handed shooters equally, with controls and operation that don't favor either side. The folding mechanism enables compact storage and deployment while maintaining solid lockup when extended.

NFA Compliance Notice

This firearm is a Short Barrel Rifle (SBR) regulated under the National Firearms Act. Purchase requires ATF Form 4 approval, $200 tax stamp, and compliance with all federal, state, and local NFA regulations. Transfer must occur through an NFA-qualified FFL/SOT dealer.

The KRISS Vector SBR Gen 3 in .45 ACP combines revolutionary recoil control with proven stopping power—big bore performance in a compact, controllable package.

SPECIFICATIONS

• Manufacturer: KRISS
• Model: Vector SBR Gen 3
• SKU: KV90-3SBL00
• UPC: 810172120037
• Caliber: .45 ACP
• Action: Semi-Automatic
• Operating System: Closed Bolt, Delayed Blowback (Super V Recoil Mitigation System)
• Barrel Length: 5.5 inches (139.7 mm)
• Barrel Material: 4140 Chrome Moly
• Barrel Finish: Black Nitride (QPQ)
• Barrel Threading: .578x28 RH
• Overall Length (Collapsed): 24.25 inches (615.9 mm)
• Overall Length (Extended): 26.2 inches (665.9 mm)
• Weight: 6.4 lbs (2.9 kg)
• Stock: KRISS Ambidextrous Telescopic Folding Stock
• Trigger: Pivoting, Single Stage
• Magazine Compatibility: Full-size Glock .45 ACP magazines
• Magazine Capacity: 30 rounds
• Magazines Included: 1
• Generation: Gen 3
• Upper: Gen 3 (aftermarket pistol grip compatible)
• Lower Housing: Gen 3 (enhanced ergonomics)
• Bore Axis: Lowest in the world (below fire control group)
• Color: Black
• Included Items:
  • (1) KRISS Vector SBR Firearm
  • (1) 30-round Magazine
  • (1) Cleaning Kit
  • (1) Cable Lock
  • (1) User Manual
  • (1) Warranty Card