This is genuine Glock factory-manufactured ammunition magazine, engineered to the same exacting standards as the pistols themselves. It delivers reliable feeding and extraction across Glock's most popular 9mm platforms.
Glock magazines arrive with robust springs designed for long-term reliability. New magazines may feel stiff during initial loading—this is normal and indicates proper spring tension.
When new, load the magazine with 32 rounds and allow the spring to compress for several days. This accelerates the break-in process. Alternatively, cycle the magazine repeatedly from full to empty to condition the spring faster. After this brief break-in period, the magazine will load smoothly and reliably.
These magazines represent the gold standard for Glock pistol reliability and are an essential component of any serious shooter's ammunition storage system.