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Sig Sauer outfitted its battle-ready 4x30 BRAVO4 Wide Field Battle Sight with enviable optical features such as fully multi-coated lenses, Low-Dispersion (LD) glass, and aspherical lenses. While the coatings provide glare-free, clear and bright images, the LD glass was given aspherical curvatures in order to deliver true colors with high edge-to-edge image flatness and resolution. Another highlight of the optical system is the MegaView advanced prism and ocular design, which increases field of view to 10°.
At the core of this gunsight is the illuminated horseshoe-dot reticle. It is calibrated for 300 Blackout cartridges and features an illuminated horseshoe and a fine center dot, a medium vertical hair with holdover markings, and horizontal arrowheads pointing towards the center. The reticle's illumination circuit also features a Motion-Activated Illumination function (MOTAC) that powers up brightness when it senses motion and powers down when at rest.
CNC-machined from a single piece of magnesium, the housing meets tight specs imposed by unfriendly battlefields: it is ultra-lightweight, compact, durable, and waterproof to 13'. To allow mounting secondary accessories such as lasers or flashlights, the sight features a Picatinny accessory rail on top. Additionally, it offers slip-free knurled adjustment rings and knobs and a rubberized eyecup. For easy and fast attachment when time matters, the sight is outfitted with a quick release Picatinny mount.
300 Blackout Horseshoe-Dot Reticle
Calibrated for 300 Blackout cartridges
Illuminated horseshoe and fine center dot
Horizontal arrowheads pointing inward
Ballistic drop compensation markings on lower vertical axis
30mm objective lens diameter
Optical axis is 1.54" above the rail
LD-Low Dispersion glass
Preserves true image color
Aspherical lens design:
Reduces spherical aberrations and distortions
Provides flat images with edge-to-edge clarity
MegaView advanced prism and ocular design:
Yields 10° field of view
Use and Handling
0.1 mrad impact point correction
60 MOA (17.5 mrad) windage and elevation
Ultra-lightweight and durable
Picatinny accessory rail on top
Picatinny quick release mount
Knurled turrets, knobs, and adjusters
Waterproof to 13'
In the Box
SIG SAUER 4x30 Bravo4 Red Dot Wide Field Battle Sight (300 Blackout Horseshoe-Dot Illuminated Reticle)
Quick Release Picatinny Mount
Limited Lifetime Transferable Warranty
Limited 5-Year Warranty for Electronics
Table of Contents
300 Blackout Horseshoe-Dot reticle
Objective Lens Diameter
Field of View
Linear Field of View
53' @ 100 yd / 17.5 m @ 100 m
Exit Pupil Diameter
Picatinny quick release mount
Impact Point Correction
60 MOA / 17.5 mrad
+2 to -2
Waterproof rating is IPX8: to 400 mbar or 13' / 4 m Fogproof
Battery / Runtime
1 x CR2 battery
6.25 x 3 x 2" / 159 x 77 x 51 mm
14.8 oz / 420 g
SIG SAUER 4x30 Bravo4 Red Dot Wide Field Battle Sight (300 Blackout Horseshoe-Dot Illuminated Reticle) Review