I've been shooting a Viper HS LR 4-16x50 for pdogs the last year and it is DEFINATELY not VX3 quality glass. In fact my other pdog gun wears a VX3 and I shoot them back to back often. The only negative about the scope is I wish the glass was a bit better. It's not bad by any means but not on par with the VX3 to my eyes.
