The stock trigger is just a "CMMG Single Stage Mil-Spec style trigger" and I have been unable to find any media from CMMG that makes mention of a Giessele trigger. I am sure you can install one in this gun but unfortunately it would need to be purchased separately.

It a standard CMMG Single Stage Mil-Spec style trigger

Keith, no, this rifle has a "Stock Mil-Spec Single Stage Trigger" and not a Giessele Trigger.

Keith - from what I find, this rifle has a CMMG Single Stage Mil-Spec style trigger .. and that came from reviewing several listings from other dealers. One could always add in the higher grade trigger afterward, if desired. Sorry I can;t be more specific.