MARK IV - 40187*
Ruger

MARK IV - 40187*

Caliber .22 LR
Size Full-Size
Type Single Action
On California Roster Exp. Jan 2027
Barrel 5.5"
Capacity 10+1
Action Single Action
Material Alloy Steel, Polymer
MSRP $499

Specifications

ManufacturerRuger
ModelMARK IV - 40187*
Model Number40187
TypePistol
Frame SizeFull-Size
Caliber.22 LR
ActionSingle Action
Barrel Length5.5"
MaterialAlloy Steel, Polymer
MSRP$499

Roster Status

On California Roster
Listing expires January 01, 2027

Magazine Capacity

10+1
CA legal: 10-round magazine max

Before You Buy

Roster approval is model-specific. Confirm the exact model number with your FFL dealer before purchase.

Model # 40187

Is the Ruger MARK IV - 40187* Legal in California?

Yes, the Ruger MARK IV - 40187* is currently legal to purchase in California. It is listed on the California Department of Justice (DOJ) Certified Handguns Roster, which means it has been approved for retail sale through licensed firearms dealers (FFLs) in the state.

Ruger MARK IV - 40187* Specifications

The Ruger MARK IV - 40187* is a .22 LR full-size pistol with a single action mechanism. It features a 5.5" barrel and ships with a 10+1 capacity. The manufacturer's suggested retail price (MSRP) is $499.

How to Buy the Ruger MARK IV - 40187* in California

To purchase the Ruger MARK IV - 40187* in California, you must be at least 21 years old, possess a valid Firearm Safety Certificate (FSC), pass a background check, and complete the mandatory 10-day waiting period. All purchases must be made through a licensed Federal Firearms Licensee (FFL) dealer. When shopping, verify the exact model number (40187) with your dealer, as roster approval is model-specific.

About Ruger

Sturm, Ruger & Co. was founded in 1949 by William B. Ruger and Alexander McCormick Sturm in a small machine shop in Southport, Connecticut. Known for delivering reliable, affordable firearms across every major category, Ruger has grown into one of America's largest firearm manufacturers. Their California roster presence spans the full spectrum — from the Mark IV .22 LR target pistols and LCR revolvers to the popular SR and Security series of duty-size pistols. Ruger's approach has always been value-driven: good engineering at a price point that doesn't require a second mortgage.

Ruger currently has 91 handguns on the California roster. Browse all Ruger models →