Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set Chrome. These AR15 Lower Parts from Guntec USA come with an Allen wrench plus a brass bullet nose to aid installation in tight spots. The easy-to-install GUNTEC USA AR15 Anti-Rotation Trigger/Hammer Pins ensure that your pins won't walk out of your gun. Pick up one of these Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set today. Specifications for Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set: Manufacturer: Guntec USA Quantity: 1 Condition: New Gun Model: AR-15 Features of Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set Replaces Trigger/Hammer Pins Anti-Rotation Locking Cam Pins Package Contents: Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set Allen Key What firearm models does the manufacturer say Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set is compatible with? The manufacturer says that Guntec USA AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set is compatible with AR-15Guntec USA GT-ARP-C: AR-15 Complete Anti-Rotation Trigger/Hammer Pin Set Chrome