ProMag SMI35 S&W M&P 22 LR Magazine 10 Round Blued Steel

The ProMag SMI35 delivers reliable feeding for Smith & Wesson M&P 15-22 rifles with its precision-engineered 10-round capacity. This aftermarket magazine addresses common feeding issues found in factory alternatives while maintaining consistent performance across various .22 LR ammunition types.

What Makes This Different

Unlike polymer alternatives, the SMI35 features heat-treated blued steel construction that resists deformation under heavy use. The magazine body maintains dimensional stability across temperature extremes, ensuring consistent feeding geometry. ProMag's follower design incorporates anti-tilt geometry that prevents nose-diving common in rimfire magazines.

Key Features

• 10-round capacity optimized for .22 LR cartridge dimensions
• Heat-treated blued steel construction resists corrosion and wear
• Anti-tilt follower prevents cartridge nose-diving during feeding
• Drop-free design enables rapid magazine changes
• Compatible with Smith & Wesson M&P 15-22 rifle platforms
• Witness holes allow visual ammunition count verification
• Steel spring maintains consistent tension through extended use

Range testing demonstrates consistent feeding across bulk and match-grade .22 LR ammunition. The steel construction handles rapid-fire sequences without heat-related expansion that can cause feeding malfunctions in polymer magazines. Competition shooters report reliable function through extended strings of fire, while the 10-round capacity meets hunting regulations in restricted states.

Technical Specs

• Capacity: 10 rounds of .22 Long Rifle
• Material: Heat-treated blued steel body and baseplate
• Compatibility: Smith & Wesson M&P 15-22 rifles
• Follower: High-impact polymer with anti-tilt design
• Spring: Music wire steel for consistent tension
• Finish: Traditional blued steel coating
• Country of Origin: United States

The SMI35 represents a practical upgrade for M&P 15-22 owners seeking enhanced reliability over factory magazines. ProMag's manufacturing tolerances ensure consistent lockup and feeding, making this magazine suitable for both recreational shooting and competitive applications where reliability cannot be compromised.