This Universal Bare Trigger Shoe from Lone Wolf Arms is designed to swap onto any Glock trigger bar you own. Machined from 6061 billet aluminum. Specifications for Lone Wolf Arms Ultimate Adjustable Glock Trigger, Trigger Shoe Only: Manufacturer: Lone Wolf Arms Fabric/Material: 6061 Billet Aluminum Shoe Gun Make: Glock Condition: New Finish: Anodized Features of Lone Wolf Arms Ultimate Adjustable Glock Trigger, Trigger Shoe Only: Precision machined 6061 Billet Aluminum shoe Smooth, symmetrical shoe with large radiused edges In-gun adjustability! No need to remove to adjust pre and over travel 2 piece design allow easy trigger bar swap Finer adjustments compared to competitors' triggers Oversized safety lever allows more comfort to the shooter's finger Safety lever is flush to the shoe for more comfort No press out pins like competitors' designs Single screw assembly - Simple and DURABLE Tighter tolerances to lessen wobble between shoe and trigger bar Built on brand new, state of the art CNC machinery 9/40 versions are intended for GEN 3&4 (DOES NOT FIT GEN5) Package Contents: Lone Wolf Arms Ultimate Adjustable Glock Trigger, Trigger Shoe Only