The ZEV Technologies Pro Plus Magwell for Glock 17 and 34 was designed for the professional shooter that is looking to enhance the look and performance of their Gen 5 Glock. The one piece design facilitates easy installation and utilizes a single attachment screw to securely mount to the Glock frame while retaining a low profile. The ZEV Pro Plus Magwell was designed and tested for compatibility with standard capacity factory magazines as well magazines fitted with ZEV basepad magazine extensions. It also incorporates a pass-through hole at the back for lanyard retention. Notes:Back straps may need to be modified if used. This product fits Gen5 G17 and G34 frames both with and without the half-moon magwell cut out. This product also fits the G45FeaturesOne piece 6061 Aluminum DesignType III Anodized FinishIncludes Magwell Body, Mounting Screw and Wrench DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent th...