A Detailed Look at 1911 Sear and Hammer Engagement

DISCLAIMER: I am in no way encouraging or advising anyone viewing this video to attempt to modify their firearms. I am NOT a professional gunsmith! If you are not 100% confident in your ability to modify firearm components AND well experienced, DO NOT even attempt it! Always seek a professional gunsmith if there is any doubt!

‪@AtlasGunworks‬ perfect match ignition set video:
   • Видео  

My 1911 trigger job video:
   • How I Do a Complete Trigger Job on a 1911  

Playlist of all my 1911/2011 content:
   • 1911/2011  

00:00 Intro
01:17 Disclaimer
01:51 Intro to sear and hammer engagement
03:08 Original 1911 design: sear and hammer geometry
04:12 Original 1911 design: sear and hammer engagement
05:45 Modifications from Kuhnhausen manual for competition
07:12 Sear and hammer engagement: common definition 1 (static)
08:22 Sear and hammer engagement: common definition 2 (dynamic)
09:52 My sear and hammer engagement relationship definitions
11:51 My desired sear and hammer geometry
12:24 My desired engagement relationship
12:55 Trigger creep calculation and engagement depth discussion
14:20 How I am improving my trigger job process
16:30 Issues with sear and hammer jigs
17:08 Sear and hammer measurements
17:28 Sear and hammer engagement relationship and measurements
18:34 Adjustments to engagement relationship
19:19 Demonstration of trigger action
20:50 Conlusion