The Strike Industries Magwell for GEN4 was designed to provide easier reloading of the magazine while adding SI styling. Keeping to the slender factory design of the pistol grip, the benefit of adding a funnel-like magwell to help prevent the dreaded reload bobble outweighs the added material of this G4 Magwell. Features : Flared magwell for easier magazine Insertion Ease of installation Unique locking mechanism Lightweight GLOCK is a registered trademark of GLOCK Inc. 3CR Tactical is not affiliated with, endorsed by, or sponsored by GLOCK Inc. Any reference to GLOCK products is for identification and compatibility purposes only.