The ProMag SMIA21 is a 12-round replacement magazine designed for Smith & Wesson M&P22 Compact .22 LR series pistols. Constructed with a heat-treated steel body finished in black oxide, it includes an injection-molded follower and a spring formed from heat-treated chrome-silicone wire. Made in the USA, this magazine is intended as a direct-fit spare or replacement for owners of the M&P22 Compact platform.
Key Specifications
- The magazine capacity is 12 rounds.
- The cartridge type is .22 LR.
- Compatibility is with Smith & Wesson M&P22 Compact .22 LR series pistols.
- This magazine is not compatible with Smith & Wesson M&P 9mm, M&P Shield 9mm, M&P Shield Plus 9mm, or Shield EZ 9mm pistols.
- The magazine body is constructed of heat-treated steel with a black oxide finish.
- The follower is injection-molded.
- The magazine spring is formed from heat-treated chrome-silicone wire.
- Finish is described as blued / black oxide.
- Manufactured in the USA.
This ProMag SMIA21 magazine provides a straightforward, durable replacement option for M&P22 Compact owners who need a dependable service or spare magazine. Its heat-treated steel construction and quality spring materials are specified for consistent feeding and long-term service in range, training, and casual shooting contexts.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
