Sturm, Ruger & Co. MARK IV - 40187 handgun

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Sturm, Ruger & Co.

Sturm, Ruger & Co. MARK IV - 40187

.22 LR Pistol 5.5" barrel ✅ CA DOJ Certified
Caliber .22 LR
Type Pistol
Size Compact
Barrel 5.5"
Capacity 10+1
Weight 34.4 oz
Action Single Action
🛡️ Certified for Sale in California — CA DOJ Handgun Roster
View this model on the official DOJ roster ↗

Sturm, Ruger & Co. MARK IV - 40187 Overview & Reviews

Overview
The Sturm, Ruger & Co. MARK IV is manufactured by one of America's most respected firearms makers, with roots tracing back to the iconic .22 LR pistol design that has served shooters for decades. This rimfire pistol is purpose-built for target shooting, small game hunting, and recreational plinking with exceptional accuracy and reliability. The MARK IV represents the modern evolution of Ruger's legendary platform, engineered for both novice and experienced shooters.

Key Features

  • Single-action, recoil-operated rimfire design chambered in .22 LR
  • Fixed barrel and bull barrel configuration providing superior accuracy at distance
  • Adjustable rear sight and fixed front sight for precision target work
  • Magazine-fed system with quick-detach magazine for convenient reloading
  • Lightweight, low-recoil platform ideal for extended shooting sessions
  • California DOJ Handgun Roster certified for lawful ownership in California

Pros & Cons

  • ✅ Exceptional accuracy with minimal recoil, ideal for shooters developing marksmanship fundamentals
  • ✅ Extremely affordable to shoot with inexpensive .22 LR ammunition
  • ✅ Legendary Ruger reliability and durability with proven track record
  • ✅ Low maintenance and simple field stripping
  • ❌ Limited self-defense capability due to .22 LR caliber
  • ❌ Single-action operation requires manual cocking for each shot

Best For: Target shooting, competitive rimfire events, marksmanship training, recreational plinking, small game hunting, and shooters seeking an affordable, reliable .22 LR platform with California legal compliance.

🏪 Where to Buy the Sturm, Ruger & Co. MARK IV - 40187 in California

You can buy the Sturm, Ruger & Co. MARK IV - 40187 online and have it shipped to a California-licensed FFL dealer, or buy it at a local gun store. Every handgun purchase in California requires a Firearm Safety Certificate, a DROS background check and a 10-day waiting period. Find a California FFL near you →

Online dealers ship to a California FFL. You pick up at your local gun store after the 10-day waiting period.

PURVEYORS OF FREEDOM™CA Compliant · Ships to your FFL · Price Match$446.99 · Buy now →
GunBroker — Live Listings
Real-time CA auction & fixed-price listings
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GrabAGun
Ships to CA FFL · Large inventory
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Brownells
Ships to CA FFL · Largest selection
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Palmetto State Armory
Ships to CA FFL · Competitive pricing
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Sportsman's Warehouse
CA retail locations + online
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Searching retailers for Ruger Mark IV. Prices and stock vary; confirm the exact California-compliant model before you buy. Some links are affiliate links that help support this site.

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