NIKON 6453 BUCKMASTERS 4.5-14 X 40MM MATTE BDC RIFLESCOPE 6453. SUPERIOR SCOPES- SUPERIOR VALUES ; 100% WATERPROOF- FOGPROOF- SHOCKPROOF PERFORMANCE; NITROGEN FILLED and O-RING SEALED ; NIKON BRIGHTVUE(TM) ANTI-REFLECTIVE MULTICOATING FOR UP TO 92% LIGHT TRANSMISSION ; LOW PROFILE- HAND-TURN- 1/4-MINUTE- STEEL-TO-BRASS- POSITIVE CLICK ADJUSTMENTS ; LIFETIME FULL WARRANTY