Check the listing for details. Holosun Open Reflex Multi-Reticle Green Dot Sight Concealed Carry - HE507K-GR X2. Color: Black, Condition: New. Listed at 319.99 USD. Holosun Open Reflex Multi-Reticle Green Dot Sight Concealed Carry - HE507K-GR-X2 Description The HE507K-GR X2 is an open reflex optical sight designed for concealed carry pistol applications. The X2 Series pistol optics feature two improvements. First is the addition of Lock Mode from our 2018-2019 LE pistol optic models. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Second, the buttons have been redesigned to compliment the Lock Mode by placing them lower and out of the way. Additional features include Holosun’s Super Green LED with up to 50k hours battery life, Multi-Reticle System, and Shake Awake. FeaturesColor: BlackFinish: AnodizedFabric/Material: 7075-T6 AluminumMagnification: 1 xObjective Window Size: 0.63x0.91 inReticle: 2 MOA dot, 32 MOA circleIllumination Type: LEDIllumination Color: GreenEye Relief: UnlimitedAdjustment Type: MOAAdjustment Click Value: 1 MOAParallax: no parallax adjustmentOptical Coating: MulticoatedBattery Type: CR1632Battery Quantity: 1Battery Life: 50,000 hoursOperating Temperature: -30 - 60 CelsiusWater Resistance Level: IP67Weight: 1.5 ozAdditional Features: Mount Not IncludedMagnification Type: FixedQuantity: 1W/E Travel at 100 Yds: 50 MOAWavelength: 540 nmStorage Temperature: -40 - 70 Celsius***FEDEX TWO DAY DELIVERY*** We will use FedEx 2-day delivery service to ship this item. This is a very reliable service in terms of their success of meeting delivery date... What that means is if you order: Monday by noon = Wednesday deliveryTuesday by noon = Thursday deliveryWednesday by noon = Friday deliveryThursday by noon = SOME locations support Saturday delivery. It depends on where you live. FedEx offers Saturday delivery in many, but not all cities. Otherwise, Monday delivery.SAT-SUN = Wednesday delivery. **Orders of three or more units will be shipped Via USPS Priority mail, and are NOT guaranteed 2-day delivery, per the schedule above. USPS could in fact meet that delivery schedule, depending on your location, but they are not as efficient as FedEx 2-Day delivery. ***Orders of 1 unit shipping to PO boxes will be shipped with USPS First Class Mail.***Orders of 2+ units shipping to PO boxes will be shipped with USPS Priority Mail.