The Arcturus Defense Solutions ARC-SLP is a smart-linked compact pistol chambered in 9x19mm, designed specifically for executive protection details who operate in social environments where overt weapons are inappropriate. The weapon's profile is deliberately minimized — thin slide, flush sights, recessed controls — and the frame is finished in a matte gray that doesn't catch light or draw attention under clothing.

The Diplomat's BCI integration is tuned for the specific challenges of protection work in crowded social environments. The threat detection system is optimized for close-range engagement in dense civilian clusters, providing the shooter with precision guidance that minimizes collateral risk. The system can distinguish between a reaching-for-a-weapon motion and a reaching-for-a-glass motion with ninety-two percent accuracy — a capability that has prevented multiple misidentification incidents during field deployment.

Arcturus developed the Diplomat after a high-profile incident where an executive's bodyguard discharged a conventional weapon in a crowded reception, killing a bystander. The project mandate was simple: build a weapon that makes sure the right person gets shot and nobody else does. The result is the most expensive compact 9mm pistol ever manufactured, and every Spire protection detail wants one.