For shooters who demand a reliable, serviceable backup magazine for older Smith & Wesson pistols, build quality and materials matter more than flashy branding. A stout, properly treated magazine will feed consistently, resist wear, and stand up to repeated loading cycles in training or field use.
PROMAG S&W 5900 is a doublestack replacement magazine engineered for Smith & Wesson 910, 915, 459, and 5900 pistols. Constructed from heat-treated blued steel, this magazine emphasizes durability and dimensional stability under repeated use. The follower lockplate and baseplate are molded from a proprietary DuPont Zytel-based black polymer to reduce wear points and keep the profile slim for secure carry and holster clearance. It uses a spring wound from chrome silicon wire and heat-treated for strength and reliability, making it a cost-effective spare at $19.99. Shop this product
HWK XL 5.56 Giveaway
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A third-party retailer is currently hosting a giveaway for an HWK XL 5.56 pistol package (≈ $1,800 retail value).
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Construction and Materials
The heat-treated blued steel body resists deformation and keeps feed lips aligned—a critical trait for consistent chambering. The DuPont Zytel-based follower lockplate and baseplate balance lightweight impact resistance with low friction against the frame and holster. Chrome silicon wire spring, heat-treated for resilience, counters spring fatigue and supports reliable round presentation over hundreds of cycles.
Fit, Function, and Use
As a doublestack magazine designed specifically for the 910/915/459/5900 family, expect full compatibility in factory magazines wells and typical aftermarket holsters. The polymer baseplate simplifies takedown and maintenance while protecting the magazine body during drops. For range use, training, or as a service spare, this magazine offers predictable feeding and long service life at a budget-friendly price. View product details and pricing
Maintenance and Practical Tips
Keep the chrome silicon spring lightly lubricated with a dry film or light oil and inspect the feed lips and follower for burrs after extended use. The blued finish provides basic corrosion resistance—store magazines dry and perform periodic cleaning to maintain peak performance.
For anyone running legacy Smith & Wesson pistols who needs a robust, affordable replacement magazine, PROMAG S&W 5900 delivers proven materials and straightforward engineering at $19.99. Check current availability and purchase options on our shop page where you can complete your order through the retailer. Check availability
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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