This beautifully anodized piece is a drop in replacement for your current Glock trigger shoe. Designed for comfort and function. Tyr, the god of war also represented by the rune Tiwaz, was invoked to encourage victory in battle, matters of law, justice, honor and oaths. One of the defining gods of the Norse, he was known for binding the wolf Fenrir, and sacrificed his hand in the process for the protection of his people. Specifications for Glockmeister TYR Glock Gen 1-4 Trigger: Manufacturer: Glockmeister Gun Make: Glock Model Generation: 4, 3, 2, 1 Condition: New Finish: Anodized Features of Glockmeister TYR Glock Gen 1-4 Trigger Note: will work on all Glock models (including the 42, 43, 43x & 48) except the Gen5! Trigger Shoe only (will require use of your existing trigger bar) Package Contents: Glockmeister TYR Glock Gen 1-4 Trigger