KCI USA KCI-MZ053 6-Round 9mm Magazine for Glock 43 Black Polymer

The KCI USA KCI-MZ053 magazine delivers reliable 6-round capacity for Glock 43 pistols in a durable black polymer construction. This aftermarket magazine provides shooters with additional ammunition capacity while maintaining the compact profile essential for concealed carry applications.

What Makes This Different

Unlike factory magazines that can cost significantly more, the KCI-MZ053 offers the same 6-round capacity at a fraction of the price. The polymer body construction matches the weight characteristics of OEM magazines while providing corrosion resistance in various environmental conditions. Quality control testing ensures consistent feeding and reliable function across different ammunition weights and profiles.

Key Features

• 6-round capacity optimized for 9mm Luger ammunition
• Black polymer construction for lightweight durability
• Drop-free design for fast tactical reloads
• Compatible with all Glock 43 pistol variants
• Heat-treated steel spring for consistent tension
• Witness holes for quick round count verification
• Textured grip panels for secure handling

Field testing demonstrates reliable cycling with both ball and hollow point ammunition across temperature ranges from -10°F to 140°F. The magazine functions effectively in competitive shooting scenarios where rapid reloads are critical, as well as everyday carry situations requiring absolute reliability. The polymer body resists impact damage better than aluminum alternatives while maintaining dimensional stability.

Technical Specs

• Capacity: 6 rounds of 9mm Luger
• Construction: Black polymer body with steel internals
• Compatibility: Glock 43 pistols
• Overall Length: Approximately 3.5 inches
• Weight: 1.2 ounces empty
• Spring Material: Heat-treated carbon steel
• Follower: High-impact polymer
• Country of Origin: USA

The KCI-MZ053 represents proven aftermarket engineering at an accessible price point. Professional shooters and concealed carry permit holders recognize the value of backup magazines, and this model delivers factory-level performance without the premium cost.