Ruger Mark IV 22/45 Lite .22 LR, Clear Anodized, 4.4 in Threaded Barrel, 4 Magazines (2022, SKU 43945)
This Ruger Mark IV 22/45 Lite pairs the lightweight, clear anodized aluminum upper with a tensioned 4.40 inch stainless steel barrel threaded 1/2x28. It features the Mark IV one-button takedown, a fixed-barrel blowback action with an internal cylindrical bolt, and the familiar 22/45 grip geometry that mirrors the 1911 angle. This example adds a Volquartsen MK IV Competition trigger and comes with four 10-round magazines.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor superficial scratches and blemishes are present from prior handling. Surfaces present cleanly overall.
What’s Included
- Ruger Mark IV 22/45 Lite .22 LR pistol with clear anodized aluminum upper and 4.4 in threaded stainless steel barrel
- Top Picatinny accessory rail (installed)
- Volquartsen MK IV Competition trigger (installed)
- Original factory trigger (loose)
- 4x 10-round steel 22/45-pattern magazines
- Barrel thread protector
- Ruger factory plastic hard case
- Ruger Mark IV instruction manual
- Assorted factory internal parts in zip bags
The 22/45 Lite configuration combines a ventilated, clear anodized (silver) aluminum upper with longitudinal flutes and four round lightening ports per side. The barrel is a tensioned stainless steel unit measuring 4.40 inches, threaded 1/2x28 TPI, and supplied with a thread protector.
The action is a semi-automatic blowback design with a fixed barrel and internal cylindrical bolt. Controls include a push-button magazine release and a manual thumb safety. The single-action trigger is upgraded with a Volquartsen MK IV Competition unit, with the original factory trigger included.
Iron sights consist of a fixed front blade and an adjustable rear. A top Picatinny accessory rail is installed. The 22/45 grip geometry mirrors the 1911 angle, with checkered 1911-style grip panels bearing the Ruger logo.
The polymer frame is finished in black, while the receiver wears a clear anodized silver finish. Capacity is 10+1. Overall length is 8.40 in, height 5.50 in, width 1.22 in, and approximate weight 25 oz. This example was manufactured in 2022 in the USA and corresponds to Ruger part number 43945.




