I bought the sight off of Amazon for $22-- its a cheapo UTG A3 "Match" sight-- but suprisingly, it works pretty good-- I only bought it pending a better BUIS once I get optics(Eotech maybe) but it works well enough. AIM has Del Tons for under $700-- but I may try to get another BB from CMMG later this year. I am impressed greatly by this one...I am though committed to finishing paying off the Stag 2 and trying my hand a PlumCrazy lower .22LR build....too many projects, not enough money...