KNS Precision AR15 Hammer/Trigger Pin Assembly Guides Red/Stainless Steel. AR15 Hammer/Trigger Pin Assembley Guide is designed to allow the user to easily install and remove the AR15 trigger and hammer pins. This guide includes 2 (two) guide pins and 1 (one) pusher. This is a must have for anyone who frequently installs or removes the trigger group in their AR15. Thanks to Mike Dunlap with Stay Safe LLC for his thoughts and input into this product. Specifications for KNS Precision AR15 Hammer/Trigger Pin Assembly Guides: Manufacturer: KNS Precision Color: Red Gun Model: AR-15 Additional Features: This guide includes 2 guide pins and 1 pusher. Country of Origin: USA Package Contents: KNS Precision AR15 Hammer/Trigger Pin Assembly Guides What firearm models does the manufacturer say KNS Precision AR15 Hammer/Trigger Pin Assembly Guides is compatible with? The manufacturer suggests that KNS Precision AR15 Hammer/Trigger Pin Assembly Guides is compatible with AR-15KNS Precision KNSAR15THP-Guide: AR15 Hammer/Trigger Pin Assembly Guides Red/Stainless Steel