SLR Glock 21 Mag Extension

SLR Glock 21 Mag Extension

• • Glock 21 Mag Extension
  • +4 Capacity
  • 6061 T6 Aluminum
  • Black Anodized

  Must use Extended Spring

  Extended Spring can be purchased at the link below:

  https://ar15safespace.com/shop/slr-glock-21-extended-mag-spring/