The KRISS Vector SBR Gen 2 10mm in Alpine packs 10mm into the shortest rifle layout KRISS offered in the Gen 2 line, with a 5.5-inch threaded barrel and an Alpine finish (KRISS part no. KV10SAP20). The Super V system is what sets it apart: a delayed blowback mechanism that sends recoil energy down rather than straight back, so the muzzle stays flatter between shots. Like every Vector, it feeds from full-size Glock magazines, which lets it share ammunition and magazines with a Glock sidearm. KRISS ships it with one 33-round magazine, a 2-stage quick-reset trigger and low-profile flip sights, so it is ready for the range, home defense or a suppressor.

Key Specifications

• The chambering is 10mm, a hard-hitting magnum pistol round.
• Barrel length is 5.5 inches, and the barrel is threaded for a muzzle device or suppressor.
• Overall length is 24.00 inches collapsed and 27.25 inches extended, very short for a shoulder-fired rifle.
• Weight is 7.0 pounds, enough mass to help settle a short barrel.
• The trigger is a 2-stage, quick-reset unit that supports fast follow-up shots.
• The stock is a 6-position collapsible design, so length of pull adjusts to the shooter and gear.
• The finish is Alpine, a light color that sets it apart from black rifles.

Frequently Asked Questions

How is the Gen 2 different from the Gen 3? The Gen 2 SBR uses a 2-stage, quick-reset trigger and a 6-position collapsible stock, and KRISS lists it at 7.0 pounds with a 5.5-inch barrel.

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.

Buy the KRISS Vector SBR Gen 2 10mm 5.5-Inch, Alpine

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-barreled rifles lineup and our Lubbock, Texas team will handle the transfer.