I suspect that it is a firing pin safety like in the MP7. Montrala is going to take some more photos today, so we will most likely know by tonight (europe).Something looks a little funky on the bolt carriers. Aside from the model of the firearm and the firing pin retaining pin, I see something else I have never seen on an SL8 or G36 carrier that is towards the rear and under the firing pin retainer. It's long. The pictures are not high res enough for me to make out anything.
what is the purpose of 2 and 7 rds mag?