A Black Anodized Ruger Mark IV 22/45 Lite with Threaded Barrel
The Ruger Mark IV 22/45 Lite model 43956 is a .22 LR rimfire pistol with a black anodized aluminum receiver, polymer 22/45 grip frame, 4.40 inch threaded barrel, 1/2"-28 thread pattern, adjustable rear sight, fixed front sight, factory-installed Picatinny rail, and two 10-round magazines. It gives the shooter the familiar 1911-style 22/45 grip angle, the lightweight Lite-series upper, and the simple takedown system that makes the Mark IV line much easier to clean than earlier Ruger rimfire pistol designs.
This model is a strong fit for range use, plinking, rimfire training, suppressor-ready ownership where legal, and shooters who want a Mark IV 22/45 Lite in a cleaner black anodized configuration rather than a brighter color variant. The black anodized finish also makes sense for a buyer who wants a more subdued rimfire pistol that pairs naturally with black optics, mounts, muzzle accessories, and magazines.
Why Choose the Mark IV 22/45 Lite?
The Mark IV 22/45 Lite is built around a lightweight, ventilated, aerospace-grade aluminum receiver and a tensioned stainless steel barrel. That construction gives the pistol the classic Ruger rimfire accuracy layout while reducing upper weight compared with heavier all-steel target models.
The 22/45 grip frame is the other major reason to choose this version. It gives the pistol a 1911-style grip angle with checkered 1911-style grip panels, a serrated frontstrap, and a checkered backstrap. That makes it especially appealing for shooters who like the feel of a 1911-style grip but want an economical .22 LR trainer or range pistol.
One-Button Mark IV Takedown
Ruger's Mark IV design uses a simple one-button takedown system. Pressing the button at the rear of the frame allows the barrel-receiver assembly to tilt up and off the grip frame without tools, making field stripping and proper chamber-to-muzzle cleaning much easier than the older Ruger rimfire pistol takedown process.
That matters for a .22 LR pistol because rimfire ammunition can be dirty. A pistol that is easy to field strip is more likely to be cleaned correctly, inspected regularly, and kept running well over time.
Threaded Barrel and Muzzle Accessory Planning
This model uses a 4.40 inch threaded barrel with a 1/2"-28 thread pattern and thread protector. That allows the use of compatible rimfire muzzle accessories where legal. The buyer should confirm muzzle accessory compatibility, thread engagement, shoulder support, bore clearance, and alignment before use.
For suppressor use, confirm the suppressor is rated for .22 LR, verify local and state legality, follow all federal NFA requirements, and check alignment before live fire. Threaded barrels, suppressors, and muzzle devices may be restricted in some jurisdictions.
Optics-Ready Rimfire Setup
The Mark IV 22/45 Lite 43956 includes a factory-installed Picatinny rail, fixed front sight, and adjustable rear sight. That gives the shooter both traditional iron sights and an easy path to a compatible red dot or rimfire optic.
A small red dot can make this pistol more useful for informal target shooting, training, pest-control work where legal, and aging eyes. The factory rail is a practical advantage because the buyer does not have to source a separate optic base just to get started.
Controls, Magazine System, and Safety Features
Ruger lists this pistol with an ambidextrous manual safety that can be converted to left-side-only operation using the included washer. The pistol also includes a push-button magazine release on the left side of the frame, drop-free magazine function, magazine disconnect, ergonomic bolt stop, and contoured ejection port.
The pistol ships with two 10-round magazines. That gives the buyer a usable starting setup right out of the box, while still making extra Ruger factory magazines a smart add-on for range use.
Color and Finish Note
Ruger lists the finish as black anodized and notes that the color and shade of anodized components may vary from the photo. That is normal for anodized aluminum parts and should be expected on Lite-series pistols.
FFL and Legal Notes
This is a firearm and must ship to a Federal Firearms Licensee for transfer. The receiving dealer must be willing and legally able to receive the handgun for the buyer. Firearm availability, state restrictions, local restrictions, threaded-barrel restrictions, magazine restrictions, suppressor or muzzle accessory laws, and transfer requirements must be confirmed before ordering.
Ruger lists this model as not available in California or Massachusetts. Huckleberry Arms does not ship firearms to California. Any controlled items placed on the same order as a firearm will also ship to the FFL unless ordered separately.
Who Should Choose This Ruger Mark IV 22/45 Lite?
This is a strong choice for the shooter who wants a lightweight .22 LR pistol with easy takedown, 1911-style grip angle, black anodized receiver, threaded barrel, adjustable sights, optics rail, and Ruger's proven Mark IV rimfire layout. It fits range shooters, new shooters, experienced shooters who want inexpensive practice, suppressor-ready rimfire owners where legal, and anyone who wants a clean black Mark IV 22/45 Lite rather than a louder color variant.
It is less suitable for a buyer who wants a non-threaded barrel, a California- or Massachusetts-compliant pistol, a centerfire defensive handgun, a heavy bull-barrel target pistol, or a pistol with a factory-installed red dot already included. The value here is the specific combination of Mark IV one-button takedown, 22/45 grip frame, lightweight aluminum Lite upper, 4.40 inch 1/2"-28 threaded barrel, factory Picatinny rail, two 10-round magazines, and black anodized finish.
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