Includes extended magazine spring. Easy to install and to remove for cleaning. Lightweight and durable.

Features:

• Adds +5 capacity on 9mm
• Adds +4 capacity on .40 cal
• Fits standard capacity GLOCK 9mm & .40 magazines
• 3-piece design is easy to reassemble without damaging the mag body
• Additional power spring provided
• ZEV Technologies will not ship any of these items to individuals living within the state of California.
• Please Note: Basepads are only compatible with 17 round magazines.