These G3 rifles have been retrofitted with trigger guard shells to help combat the suicide problem they had been experiencing.

more Turkish soldiers died from suicide than combat in 10 years… In the last 10 years, 818 Turkish soldiers were killed in clashes, while in the same period, the number of soldiers who committed suicide amounted to 934.

It should be noted these were issued to rear echelon non combat troops.

https://silahreport.com/2020/04/27/suicide-prevention-trigger-guard-in-turkish-armed-forces/