Don’t know much about these. Made in USA, dual illuminated reticle, mil-hash, 30mm tube, SF, target turrets (one locking knob is bent but works fine), SFP used but works great. Picked up a few of these a years back used as a lot and have used them on Gasrams, PCP, and magnum breakbarrels with no issues at all. These where used surplus and is sold as is. $175 OBO shipped PayPal FnF…add one pc mount in pics for additional $10. Thank you. Keahi Lum Ho