The HS510C is an open reflex optical sight. Features include Holosun’s Super LED with up to 50k hours battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake.
The HM3X is An Aluminum bodied 3X magnifier that includes a quick release, ambidextrous, flip-to-side mount with Absolute and Lower 1/3 Co-witness mounting solutions. Additional features include 2.75” of eye relief, IP67 certified water resistance, with windage and elevation adjustment for precision zeroing.
HS510C Key Features:

• Multi-Reticle System: Circle Dot; 2 MOA Dot; 65 MOA Circle
• Up to 50,000 Hours Battery Life (Setting 6)
• 12 Brightness Setting: 10 DL & 2 NV Compatible
• Convenient Tray Battery Compartment
• Parallax-free & Unlimited Eye Relief

HM3X Key Features:

• Flip-to-the-side Design
• Outstanding Specification & Clarity
• QD Mount & Spacer included
• IP67 Waterproof

Holosun HS510C Reflex Red Dot Sight Specifications:

• Reticle: 2 MOA Dot & 65 MOA Circle
• Light Wavelength: 650nm
• Reticle Color: Red
• Parallax Free: Yes
• Unlimited Eye Relief: Yes
• Magnification: 1x
• Multi-Coatings: Yes
• Power Source: Battery
• Battery Type: CR2032
• Battery Life (Hours): 50000
• Brightness Setting: 10 DL&2 NV
• Housing Material: Aluminum & Titanium Hood
• Surface Finish: MAO
• Adjustment per Click: 0.5 MOA
• W&E Travel Range: ±50 MOA
• Storage Temperature: -40℃~70℃
• Working Temperature: -30℃~60℃
• Submersion: IP67
• Vibration: 1000G
• Window Size:0.91x1.26
• Dimension (in): 3.3x1.68x1.78
• Weight (oz): 4.94

Holosun HM3X 3X Magnifier Specifications:

• Magnification: 3 x
• Exit Pupil: 0.29 in
• Eye Relief: 2.75 in
• Field of View: 37 ft at 100 yds
• Lens Material: Optical Glass
• Water Resistance Level: IP67
• Width: 1.6 in
• Height: 2.4 in
• Fabric/Material: Aluminum
• Color: Black
• Magnification Type: Fixed
• Weight: 9.5 oz

In The Box: Holosun HS510C Reflex Red Dot Sight and HM3X 3X Magnifier Combo Set with Hard Case with Wearable4U Bundle (May Vary. Choose Your Variation).