... aircraft grade aluminum 4.Length130mm Width 55mm SCMMC Rifle Scope Series aim at outdoor sporting goods market, ... lovers to improve their shooting fun. All rifle scopes are close to market demands, and ... and assembling, and OEM is offered.SC-RD3000 Red dot scopeOPTICAL DATASystem Parallax Free, Reflex, Collimator SystemMagnification No ... 100 yards SC-RD3000 Waterproof automatic collimator red dot scope