This unit adds capacity to Mid and Full Size Glock high capacity magazines. This magazine extension replaces the original floor plate and internal locking plate and adds two rounds to a 9mm; two rounds to a 40SW and 357SIG, and one round to a 45GAP magazine.
• These units alter the capacity of High Capacity Full Metal Lined Glock magazines
• These units add three rounds to the 9mm, two rounds to the 40SW and 357SIG and one round to the 45GAP models
• They are made from High Impact Polymer and withstand drop tests at temperatures from -20 F to 350 F
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