The Ruger Mark IV 22/45 bull barrel pistol in .22 LR with a blued finish (brand part no. 40187) pairs Ruger’s proven Mark IV action with a heavy bull barrel for reduced muzzle flip and added precision at the range. Ruger cuts the stainless barrel to 5.5 inches with a 1:16 right-hand twist, and two 10-round magazines ship standard. The pistol carries a fixed front sight paired with an adjustable rear sight, and an ambidextrous thumb safety supports shooters on either hand. Among rimfire target semi-auto handguns, this Mark IV 22/45 configuration favors target shooters and plinkers who want a heavier, steadier barrel profile.
Key Specifications
- Chambered in .22 LR.
- Capacity is 10 rounds per magazine.
- Barrel measures 5.5 inches in a heavy bull profile with a stainless finish.
- Rifling twist rate is 1:16 right-hand.
- Sights are a fixed front and adjustable rear for precise zeroing.
- Safety is an ambidextrous thumb safety.
- Two 10-round magazines ship standard with the pistol.
- Overall length is 12.3 inches.
- Ships at approximately 3.75 pounds.
Frequently Asked Questions
What does the bull barrel profile add? Extra weight forward that helps reduce muzzle flip and improve steadiness for precision shooting.
How many magazines are included? Two 10-round magazines.
Buy the Ruger Mark IV 22/45 Bull Barrel Pistol
A heavy, steady bull barrel on Ruger’s proven Mark IV action is exactly what this 22/45 delivers for the range. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.
