Ruger Mark IV 22/45 Handgun .22 LR 10RD Magazines(2) 4.40'' Threaded Barrel Picatinny Rail.

Features:

• Simple one-button takedown for quick and easy field-stripping and proper chamber-to-muzzle cleaning. Pressing a button in the back of the frame allows the barrel-receiver assembly to tilt up and off the grip frame without the use of tools.
• Comfortable precision-molded polymer grip frame with a serrated frontstrap and checkered backstrap.
• 1/2"-28 threaded barrel with thread protector allows for the attachment of popular muzzle accessories.
• Cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy and longevity.
• Ergonomic bolt stop.
• Checkered 1911-style grip panels for a great appearance and comfortable non-slip hold.
• Internal cylindrical bolt construction ensures permanent sight-to-barrel alignment and higher accuracy potential than conventional moving-slide designs.