The KRISS Vector SBR Gen 3 10mm in black is the most compact rifle-format Vector, with a 5.5-inch barrel and a 33-round magazine (brand part no. KV103SBL00). Its Super V Recoil Mitigation System is a closed-bolt delayed blowback design that drives blowback energy downward, countering the barrel’s rise when fired. KRISS pairs that with what it calls the lowest bore axis of any firearm, which places the barrel in line with the shooter’s hand. The Gen 3 upper accepts aftermarket pistol grips, and the refreshed lower housing improves hand support. It feeds from full-size Glock magazines, which makes it a natural partner for a 10mm Glock.

Key Specifications

• The chambering is 10mm, a powerful cartridge that the Super V system keeps controllable.
• Barrel length is 5.5 inches, the shortest rifle configuration of the Vector.
• The twist rate is 1-in-10, matched to 10mm bullet weights.
• The operating system is closed bolt, delayed blowback through KRISS’s Super V system.
• Capacity is 33 rounds, with one magazine included.
• The barrel is 4140 chrome moly, a tough barrel steel.
• The barrel finish is black nitride (QPQ), which resists wear and corrosion.
• The trigger is a pivoting single-stage design.
• The stock is the KRISS ambidextrous telescopic folding stock, adjustable for length and foldable for storage.
• Sights are low-profile flip sights, which fold down under an optic.

Frequently Asked Questions

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for short-barreled rifles. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply. Taking an SBR across state lines still requires an approved ATF Form 5320.20.

What magazines does it take? Full-size Glock magazines. One 33-round 10mm magazine ships with the rifle.

What comes in the box? The rifle, one magazine, a cleaning kit, a cable lock, a user manual and a warranty card.

Buy the KRISS Vector SBR Gen 3 10mm, 5.5-Inch, Black

As of October 9, 2026, this short-barreled rifle transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through KRISS‘s short barrel rifles lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer. A 10mm Vector SBR in black gives the cartridge’s power a platform built to keep it flat and fast.