The KRISS MagEx2 Kit for Glock 21 +17RD 3-Pack is designed to significantly increase the capacity of your standard Glock 21 magazines. Each kit in this 3-pack adds 17 rounds to your .45 ACP G21 magazine, bringing the total capacity to 30 rounds. These extensions are compatible with KRISS Vector firearms and Glock platforms, offering reliable feeding and durability.

Features/Specs:

• Caliber: .45 ACP
• Capacity Increase: +17 rounds per magazine
• Compatibility: Glock 21 magazines (Gen 3 and later)
• Total Capacity: 30 rounds per extended magazine
• Kit Contents (per extension):
  • Extended baseplate
  • Outer sleeve
  • Extended magazine spring
• Construction: Reinforced polymer composite
• Color: Black
• Easy installation process
• Capacity indicator holes for round counting
• Maintains reliable feeding of factory magazines
• Ideal for use with KRISS Vector .45 ACP and compatible Glock platforms
• Quantity: 3 complete extension kits per package
• Made in the USA