Trinity Force 3-9x42 Tactical Rifle Scope With illuminated Mil-Dot Reticle + Mount + Micro Backup Dot Sight / This item fits Weaver Picatinny Rails Mossberg 715t FLEX22 Ruger SR22 S&W M&P 15-22 Trinity 3-9x42 Tactical Rifle Scope + Backup Red Dot Sight The illuminator has adjustable brightness Made from durable aluminum Activation and brightness functions are controlled via a turret on the side of the scope Fit most Weaver / Picatinny style rails