The Strike ARTHJ Trigger Hammer Jig Black Steel Rifle AR Platform from Strike Industries is a purpose-built tool that lets you fully assemble and test an AR-15 trigger group before it ever goes into your lower receiver. By holding the sear, hammer, and disconnector under normal spring tension in a rigid steel frame, it gives you a clear view of engagement surfaces while protecting both the jig and your parts during dry fire testing.

This jig is ideal for armorers, builders, and anyone fine-tuning an AR-15 trigger. Mount it in a vise to safely adjust trigger pull, verify reset, and confirm reliable operation without handling a complete rifle or risking cosmetic damage to your lower. It also serves as a practical training aid for learning trigger assembly installation and function, backed by Strike Industries’ reputation for thoughtful, shooter-focused innovation.

• Manufacturer: Strike Industries
• Model: ARTHJ Trigger Hammer Jig
• Product Type: AR Tool
• Intended Use: AR-15 trigger assembly setup and function testing
• Construction: Black steel jig body with vise-mountable design
• Functionality: Allows dry fire testing and visual inspection of sear, hammer, and disconnector engagement