Amsc on p365x - Shield Sights AMSc Compact Enclosed Emitter 1x17.45mm Reflex Red Dot Sight

I recently purchased the new Shield AMSc hre and got a great price! Aside from difficulty finding the correct screw to mount the red dot. Shield and Sig said M3-.4x8mm were the correct length but after purchasing the screws and sending my slide back to Sig for inspection I can safely say M3-.5x6mm is the correct length. I cut down two screws and with some Loctite walah! Optic is crisp and sharp and after some serious zeroing it is working great!