Colt AR-15 Hammer/Sear Pin Block Kit .154 in - Brownells

Machined steel block lets you mate the hammer and sear (or trigger) outside of the firearm for a clear view of the engagement point.

• Accepts a wide selection of hammer and sear pins
• Dovetailed adjustment block in a slotted channel for precise pin spacing to match individual frames/receivers
• Allen screw locks the pin setting so hammer and sear can be dropped in place relative to their actual position in the firearm
• Great for cutting engagement surfaces on new parts or fine-tuning factory parts
• Pins are individually numbered for identification

Hammer/Sear Pin Block Kit includes a plastic storage box and block plus all nine sets of special pins for popular gun models (including AR-15 Large and Small Pin).