The Shield Arms +5/4 Magazine Extension increases capacity on factory Glock 19 and Glock 23 magazines without compromising reliability or concealment.
- Part Type: Magazine Extension
- Compatible Firearms: Glock 19, Glock 23 (factory magazines)
- Capacity Increase: +5 rounds (9mm), +4 rounds (.40 S&W)
- Material: Aluminum
- Finish: Cerakote Mud
- Installation: Drop-In (basic hand tools required)
- Includes: Extension baseplate, replacement magazine spring
