The Ruger Security‑9 (3816) is a mid-size 9 mm pistol designed for simplicity, reliability, and self-defense. It uses Ruger’s Secure Action™ system (internal hammer + bladed safety), has a 4″ alloy-steel barrel, and comes with a factory-installed Viridian E-Series red laser mounted on the rail. The grip is made from textured, glass-filled nylon for a secure hold, and the slide and barrel are through-hardened alloy steel with a blued finish.

Model:  Ruger Security‑9
Caliber:  9mm Luger
Action:  Secure Action™ (internal hammer + bladed trigger safety)
Magazine Capacity:  15 + 1
Barrel Length:  4.00″, Alloy Steel
Overall Length:  7.24″
Weight (Unloaded):  24.3oz
Frame Material / Finish:  Glass-filled nylon, textured grip
Slide / Barrel Material:  Through-hardened alloy steel, blued finish
Sights:  Dovetailed.  Rear: drift-adjustable.  Front: fixed
Laser:  Viridian E-Series red (635–650 nm), ambidextrous push-button activation
Twist Rate:  1:10″ RH
Included Magazines:  2 alloy-steel magazines