The FN Baby Browning is a small blowback-operated semi-automatic pistol designed by Dieudonné Saive based on a design by John Browning (among Browning's last designs) and chambered in .25 ACP (6.35×16mmSR). The pistol features a six round magazine capacity and is a striker-fired, single action, blow back mechanism. The manual thumb operated safety locks the slide in the closed position when engaged using side thumb pressure.