Soldier Systems Daily posted some interesting news from SOFIC
Mk13 Trigger
Geissele made trigger system for Accuracy International rifles with Stiller action. This is the first bolt action trigger design that passed the drop test.
http://soldiersystems.net/2017/05/16/sofic-geissele-automatics-introduces-mk13-trigger/
M4/M16 High Speed Selector
This selector systems was developed so that the shooter can depress the selector to shoot full-auto and revert to semi-auto by releasing the thumb. The reason for such design is mentioned in article
http://soldiersystems.net/2017/05/17/sofic-geissele-high-speed-selector-for-m4m16/
