Savage Arms MKII 17 HMR Magazine 10-Round Black Steel 55258

The Savage Arms 55258 MKII magazine delivers reliable feeding for 17 HMR rimfire rifles with its robust 10-round capacity. This factory magazine maintains consistent performance across temperature extremes and extended shooting sessions, eliminating feed issues that plague aftermarket alternatives.

What Makes This Different

Factory specifications ensure perfect fitment with MKII series rifles, while the black oxide steel construction resists corrosion better than standard blued finishes. The spring-loaded follower maintains consistent tension throughout the entire capacity range, reducing misfeeds by 40% compared to worn factory magazines. Heat-treated steel construction withstands over 10,000 loading cycles without spring fatigue.

Key Features

• 10-round capacity for 17 HMR cartridges with anti-tilt follower design
• Black oxide steel construction with corrosion-resistant finish
• Factory OEM specifications for Savage MKII series rifles
• Heat-treated magazine spring rated for 10,000+ cycles
• Polymer base plate with steel reinforcement insert
• Drop-free release mechanism for rapid reloads
• Witness holes for quick round count verification

Field testing demonstrates consistent cycling across temperature ranges from -20°F to 120°F without feed disruption. The magazine functions reliably with all major 17 HMR ammunition manufacturers, including CCI, Hornady, and Federal loads. Precision shooters report improved accuracy potential when using factory magazines versus aftermarket alternatives due to consistent cartridge presentation angle.

Technical Specs

• Capacity: 10 rounds of 17 HMR ammunition
• Construction: Black oxide treated steel body
• Compatibility: Savage MKII series rifles chambered in 17 HMR
• Overall Length: 4.2 inches
• Width: 0.875 inches
• Weight: 3.1 ounces empty
• Spring Material: Music wire steel, heat-treated
• Country of Origin: United States

Factory magazines maintain rifle accuracy and reliability standards that Savage engineers designed into the MKII platform. This OEM component ensures optimal performance for competition shooting, small game hunting, and precision target work where consistent feeding translates directly to improved results.