Pro-Arms Extended Aluminum Magazine Base for Elite Force Glock

Metal Construction
Able to Increase 5 Rounds BB Pellet Capacity For Your Magazine
Also Provides Protection from Dropping your Magazine
Suitable For Umarex (VFC) Glock Series Gas Blow Back GBB Pistol Airsoft Guns Magazine

Specifications

Material Aluminum
Compatibility Umarex Glock Mags