North American Arms SW250 Sidewinder Small .22 WMR 2.5" 5-Round Revolver

The North American Arms SW250 Sidewinder Small .22 WMR 2.5" 5-Round Revolver is a purpose-built deep-concealment firearm designed for personal protection, backup duty, and situations where absolute discretion is paramount. Built by North American Arms—a manufacturer with decades of expertise in micro-revolvers—the Sidewinder fills a critical niche for law enforcement off-duty carry, plainclothes security personnel, and civilians seeking a reliable, highly concealable defense option. At 2.75 pounds with minimal footprint, this revolver prioritizes portability without sacrificing shootability or stopping power.

The .22 WMR (Magnum Rimfire) cartridge delivers superior velocity and energy compared to standard .22 LR, making it viable for defensive applications at typical personal-defense ranges. The 2.5-inch barrel balances point-of-aim accuracy with compact overall dimensions, while the five-round capacity reflects the design philosophy of micro-revolvers: maximum concealability with sufficient rounds for most self-defense scenarios. Revolver operation eliminates feed reliability concerns inherent to semi-automatics, a critical advantage when dependability cannot be compromised. The fixed-sight configuration and double-action-only trigger design eliminate external snag hazards during draw, a priority for appendix, ankle, and deep-pocket carry.

Law enforcement officers, security professionals, and civilian permit holders benefit most from this revolver's role as a true backup weapon or primary carry alternative for situations demanding maximum concealment. Its compact profile suits deep-waistband holsters, pocket carry with minimal printing, and ankle or off-body carry scenarios where standard-sized handguns are impractical. The Sidewinder's proven mechanical simplicity and NAA's track record of durability make it well-suited to infrequent training and extended storage between deployments—hallmarks of true backup weapons. Compatible with standard .22 WMR ammunition, it requires no special magazines or proprietary components, ensuring straightforward resupply and field reliability.