The B&T APC9K SBR 9mm 4.3in (B&T part no. BT-361765-02-SBR-G-CT-TS) is a compact short barrel rifle built on B&T’s Advanced Police Carbine platform, developed for the demands of modern police, special forces, and military units. Its 4.3-inch barrel makes the APC9K one of the shortest complete SBR packages in the APC9/40 family, chambered in 9mm and paired with a Glock-pattern magazine well. As a Pro Series model, it features dual auto-folding, non-reciprocating charging handles, improved lower receiver ergonomics with a side-positioned bolt hold-open/release, a replaceable M4-compatible pistol grip, and Magpul M-LOK accessory slots. Semi-automatic and ambidextrous, the APC9K is engineered for reliability and modularity across specialized missions.

Key Specifications

• Chambered in 9mm.
• 4.3-inch barrel length.
• Rated magazine capacity of 33 rounds.
• Features ambidextrous controls.
• Semi-automatic action.
• Model designation APC9K from B&T’s Pro Series lineup.
• Includes dual auto-folding, non-reciprocating charging handles.
• Equipped with Magpul M-LOK accessory slots.
• Classified by the manufacturer as an SBR product type.
• UPC 840225710212 identifies this exact configuration.

Frequently Asked Questions

Is this an NFA item? Yes. As an SBR, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What does the Pro Series designation add over a standard APC9? Pro Series models add dual auto-folding non-reciprocating charging handles, a side-positioned bolt hold-open/release, and an M4-compatible replaceable pistol grip for improved ergonomics.

Buy the B&T APC9K SBR 9mm 4.3in

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through B&T‘s short barrel rifle lineup and our Lubbock, Texas team will walk you through the transfer process.