Collection: Ruger Mark IV Tactical Holsters

Ruger Mark IV Tactical Holster Compatibility Overview

The Ruger Mark IV Tactical (Model 40150) is a .22 LR semi-automatic rimfire pistol with a 4.4-inch cold hammer-forged threaded barrel, dual Picatinny rails running the full length of the top and bottom of the barrel assembly, and an overall length of 8.50 inches. 

The grip frame is CNC-machined aluminum alloy with a traditional Ruger grip angle. Unloaded weight is 34.6 oz. Width at the frame measures 1.20 inches.

Holsters in this collection are fitted specifically to the Mark IV Tactical (Model 40150). The Mark IV 22/45 Tactical (Model 40167) is a related but distinct model built on a polymer frame with a 1911-style grip angle and slightly different overall dimensions. 

Do not assume cross-compatibility between the 40150 and 40167 without confirming which model is listed in the product's fit guide.

The Ruger Mark IV Tactical's dual Picatinny rail system and threaded barrel extend the pistol's outer geometry beyond a standard profile. Buyers who carry this pistol with a mounted red dot or bottom-rail accessory attached should verify holster fit with those accessories in place before relying on any holster for carry or retention purposes. 

Alien Gear holsters in this collection are fitted to the base pistol profile unless a specific optics-cut or accessory-accommodating configuration is noted in the individual product listing.

How to Choose the Right Alien Gear Holster for the Ruger Mark IV Tactical

The primary decision in selecting a holster for the Mark IV Tactical is carry position, which is determined by your intended use and whether this pistol will be used for range and training purposes or daily carry.

Three carry positions are available in this collection:

• IWB (Inside the Waistband): The Cloak Tuck 3.5 positions the pistol inside the waistband against the body. This is the closest-to-body option and is suited for users who prioritize concealment while retaining full access to the pistol. The Mark IV Tactical's 34.6 oz unloaded weight and 8.50-inch overall length make holster mounting depth and cant angle meaningful factors. Adjust both to distribute weight comfortably across extended wear.
• OWB (Outside the Waistband) Paddle: The OWB paddle holster mounts outside the waistband on the hip. The paddle attachment allows the holster to be put on and removed without a belt change, making it practical for range sessions, training transitions, and situations where the pistol does not need to remain on the body between uses. Retention is passive and adjustable.
• Drop Leg (Swivel): The swivel drop leg holster positions the pistol on the thigh below the hip. This configuration is suited to dynamic shooting environments where a hip-mounted holster may be obstructed by gear, body armor, or movement range requirements. The swivel function allows the holster body to rotate for draw angle adjustment.

For suppressor-configured carry, evaluate each holster's muzzle clearance against the total length of your suppressor before use. 

Carrying a suppressor-equipped firearm in any holster not designed for that configuration is outside the intended use of any holster in this collection.

Carry Styles Supported by This Collection

This collection supports three carry styles for the Ruger Mark IV Tactical:

• Inside the waistband (IWB) via the Cloak Tuck 3.5
• Outside the waistband (OWB) via the paddle holster
• Thigh-mounted drop leg carry via the swivel drop leg holster

No shoulder, ankle, or small-of-back holster configurations are listed as available for this model in this collection. If your carry preference falls outside the three styles above, those options are not represented here.

Common Fit or Selection Mistakes to Avoid

• Confusing the Mark IV Tactical with the Mark IV 22/45 Tactical: These are different pistols with different frame materials, grip angles, and dimensional profiles. A holster fitted to the Mark IV Tactical (Model 40150) is not confirmed to fit the 22/45 Tactical (Model 40167) and vice versa. Verify the exact model before purchasing.
• Assuming optics-cut compatibility: If your Mark IV Tactical carries a mounted red dot on the top Picatinny rail, check each individual product listing to confirm whether an optics-cut configuration exists for that holster. Do not assume a standard-profile holster will accommodate a mounted optic.
• Selecting carry position based on the pistol alone: The Mark IV Tactical at 34.6 oz is a full-size rimfire pistol. IWB carry at this weight requires a quality belt and should be evaluated for comfort before committing to a carry setup. OWB and drop leg are generally more accommodating for extended wear at this weight class.
• Purchasing for suppressor-equipped carry without verifying muzzle clearance: No holster in this collection is listed as suppressor-rated. Verify individual product specs if suppressor-equipped carry is your intended use case.

When This Collection May Not Be the Right Fit

This collection covers the Ruger Mark IV Tactical in standard barrel configuration across three carry positions. It may not serve your needs if:

• You own the Mark IV 22/45 Tactical (Model 40167) rather than the aluminum-frame Mark IV Tactical (Model 40150)
• You require a holster with confirmed optics accommodation and no such listing is present in this collection
• You intend to carry the pistol with a suppressor attached and require a holster specifically rated for that added length and weight
• You require a carry style other than IWB, OWB paddle, or drop leg, as no other configurations are listed for this model