You have an old style receiver. Call Blaser with the serial number and see what they say about upgrading the receiver. Make sure you tell them and specify in the description of what you want done that you want a selective trigger.
In the video at 5:30 there is a reference to the barrel selector being in front of the trigger as opposed to being on top in the safety selector. Possibly is yours is in the safety selector?
A forum community dedicated to Trap shooting enthusiasts. Come join the discussion about targets, clays, hunting, gunsmithing, gear reviews, accessories, classifieds, and more!