[Vultite]

Originally Posted by M&P Shooter

Apex hard sear
Hard Sear Install.wmv - YouTube

Remove mag safety(I got a pack of springs from Home Depot)
How To Remove S&W M&P Magazine Disconnect Instructions - YouTube

Apex Safety plunger(I did this by laying the slide on a roll of tap and used a brass punch.
USB Install - YouTube

Thanks for the vid links! Do you think this would work as a more "drop in" replacement? http://www.midwayusa.com/product/546...sig-40-s-and-w