Magnum Research MR SwitchBolt 22 LR 18 inch MCA-22

The Magnum Research MR SwitchBolt is a rimfire semi-automatic rifle chambered in .22 LR designed for range use, training and recreational target shooting. It features an 18 inch tensioned aluminum barrel with a threaded muzzle and a modular Luth-AR MCA-22 black chassis-style stock. The receiver is machined from 6061-T6 aircraft aluminum and includes a Picatinny rail for optics. The charging handle is mounted on the left side by default and can be switched to the right side.

Key Specifications

• Chambered in .22 LR.
• The barrel measures 18 inches and is tensioned with a threaded muzzle.
• The receiver is made from 6061-T6 aircraft aluminum.
• The magazine capacity is 10 + 1.
• The stock is a Luth-AR MCA-22 modular chassis in black.
• The rifle weighs approximately 4.25 lbs.
• Includes a Picatinny rail on the receiver for optics and accessories.
• The action is an ultra semi-automatic rimfire design.
• The charging handle is left-side mounted and can be switched to the right side.

With a lightweight, aircraft-grade aluminum receiver and a tensioned, threaded 18 inch barrel, the MR SwitchBolt offers a practical rimfire platform for shooters seeking predictable handling and modularity. Its combination of a chassis-style stock, optics-ready rail and a switchable charging handle makes it suited to range sessions and precision practice where ergonomic options and reliable function matter.