Ruger Security-9 9mm Luger Full-Size, 4 in Barrel, Blued, 12+1, 2018 — Manual Safety, Viridian E-Series Red Laser, 2 Mags, Box & Manual
This full-size Ruger Security-9 (MPN 3810) is a 2018 example with Ruger’s Secure Action pre-cocked internal-hammer system, a 4-inch alloy-steel barrel, and a blued through-hardened slide. It comes well-appointed with two 12-round magazines, an installed Viridian E-Series red laser, the factory box and manual, and a Ruger factory sight set in packaging. The frame is marked to indicate it will fire without a magazine inserted.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling and use. The bore is bright and clean. Refer to pictures.
What’s Included
- Ruger Security-9 factory box (SKU 03810 label visible)
- Ruger Security-9 instruction manual
- Two 12-round steel double-stack magazines
- Viridian E-Series red laser sight (trigger-guard mounted), installed
- Viridian CR1/3N Tactical Energy+ lithium batteries (for laser)
- Ruger Security-9 sight set (factory accessory, in package)
The Security-9 uses Ruger’s Secure Action pre-cocked internal-hammer system with a short, single-action-style pull. Safety features include a manual thumb safety, trigger safety, and a sear/hammer catch, plus a chamber inspection port for quick status checks. The frame is marked “PISTOL WILL FIRE WITH MAGAZINE REMOVED,” confirming there is no magazine disconnect.
Construction is robust, with a through-hardened alloy-steel slide and barrel finished in black oxide (blued). The glass-filled nylon frame sits over a one-piece hard-coat anodized aluminum chassis with full-length rails for smooth, consistent cycling.
Factory sights include a fixed front and drift-adjustable rear, with high-visibility yellow accents observed: a front dot and a rear U-outline for fast sight acquisition. An integral Picatinny-style accessory rail on the dust cover supports lights or lasers; this pistol comes with a trigger-guard-mounted Viridian E-Series red laser installed and batteries included.
This full-size 9mm configuration pairs a 4-inch barrel with a 12+1 capacity using the included steel double-stack magazines. It is the standard manual-safety variant (not a Pro), manufactured in the USA in 2018 and identified by Ruger’s MPN 3810.

