B&T APC9 Pro Aluminum Trigger Group (BT-361669)

The B&T APC9 Pro aluminum trigger group is the factory metal-lower upgrade for the APC9, GHM9, and SPC9 Pro family. It is a complete drop-in lower receiver assembly, not a parts kit; the entire polymer lower comes off and the machined aluminum unit goes on in its place. The result is a noticeably crisper, more consistent break and the rigidity of a metal fire control housing in place of the standard polymer.

Because the upper receiver is the serialized part on the APC9 platform, this aluminum lower is not a firearm and ships directly without an FFL transfer. That makes it one of the simplest meaningful upgrades an APC9 Pro owner can buy: order it, swap it on the bench, and the gun shoots and feels more like a duty-grade host than a polymer-lower pistol.

At $699.99 it is the most expensive single non-suppressor upgrade in the APC9 catalog, and it is a refinement rather than a transformation; the factory polymer trigger is already good. Buyers chasing the last increment of trigger feel and the tactile upgrade of an all-metal lower will value it. Owners content with the factory lower can skip it and spend the money on a suppressor or optic instead.