Fixed Sights

FBS is an advanced, low-profile, durable, auxiliary front sight. It can be used with any rear sight, but has been designed to provide an extreme optical advantage when paired with the FAB Defense® RBS Rear Back-up Sight. Sight pin elevation is easily and quickly adjusted without tools.

FBS is readily mounted on any 1913 Picatinny rail, making it ideal for use on M4 / AR-15 / M-16 platforms and on the FAB Defense® KPOS.

Advantages:
- Can be used as a primary or back-up sight
- Ergonomic angel-wing-shaped front shroud helps center the image with any rear sight, but when used with a matching FAB Defense® RBS Rear Back-up Sight, it creates a precise optical tunnel that ensures more accurate aiming and faster target acquisition
- Low folded profile is smooth and inconspicuous, and will not snag on gear, webbing, or brush
- Instant spring-locked deployment mechanism will not slip, break or deform
- No tools needed for easy, rapid elevation adjustments, with positive detent locking
- Made of extremely durable high-grade polymer and metal
- Available in black, olive drab green or flat dark earth

Compatibility:
- All 1913 Picatinny rails
- The FBS should never be mounted on a railed gas block

This is the OEM front flip sight that is equipped with the KRISS Vector and DEFIANCE firearms. This sight is extremely low profile, designed to tuck completely out of vision when folded, sitting a mere 12.7mm above the rail surface. The DEFIANCE Front Sight features a very wide range of elevation adjustment, accommodating for a large spectrum of firearms with various height over bore and sight radius measurements. Finally, the large, textured, adjustment knob makes elevation changes with gloves simple and easy.

DIMENSIONS
Length Folded 2.0" / 50.8mm
Width at Base 1.19" / 30.22mm
Width at Body 0.96" / 24.38mm
Height Folded 0.50" / 12.7mm
Weight 0.50oz / 14.17g

This is the OEM front flip sight that is equipped with the KRISS Vector and DEFIANCE firearms. This sight is extremely low profile, designed to tuck completely out of vision when folded, sitting a mere 12.7mm above the rail surface. The DEFIANCE Front Sight features a very wide range of elevation adjustment, accommodating for a large spectrum of firearms with various height over bore and sight radius measurements. Finally, the large, textured, adjustment knob makes elevation changes with gloves simple and easy.

DIMENSIONS
Length Folded 2.0" / 50.8mm
Width at Base 1.19" / 30.22mm
Width at Body 0.96" / 24.38mm
Height Folded 0.50" / 12.7mm

This is the OEM polymer rear flip sight that is equipped with the KRISS Vector and DEFIANCE firearms. This sight is extremely low profile, designed to tuck completely out of vision when folded, sitting a mere 14.22mm above the rail surface. The DEFIANCE Rear Sight features two apertures, 1.5mm diameter and 4.5mm diameter, for different lighting and shooting conditions. Additionally, the rear sight folds down completely flat regardless which aperture is in use, in order to be as user friendly as possible. Finally, the large, textured, adjustment knob makes windage changes with gloves simple and easy.

DIMENSIONS
Length Folded 2.25" / 57.25mm
Width at Base 1.19" / 30.22mm
Width at Body 1.19" / 30.22mm
Height Folded .56" / 14.22mm
Weight 0.75oz / 21.26g
Large Aperture Dia. .18" / 4.5mm
Small Aperture Dia. 0.06" / 1.5mm

This is the OEM polymer rear flip sight that is equipped with the KRISS Vector and DEFIANCE firearms. This sight is extremely low profile, designed to tuck completely out of vision when folded, sitting a mere 14.22mm above the rail surface. The DEFIANCE Rear Sight features two apertures, 1.5mm diameter and 4.5mm diameter, for different lighting and shooting conditions. Additionally, the rear sight folds down completely flat regardless which aperture is in use, in order to be as user friendly as possible. Finally, the large, textured, adjustment knob makes windage changes with gloves simple and easy.

DIMENSIONS
Length Folded 2.25" / 57.25mm
Width at Base 1.19" / 30.22mm
Width at Body 1.19" / 30.22mm
Height Folded .56" / 14.22mm
Large Aperture Dia. .18" / 4.5mm
Small Aperture Dia. 0.06" / 1.5mm

Carrying Handle, Detachable Mil-Spec

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.

Made in U.S.A.

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.

Made in U.S.A.

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.

Made in U.S.A.

The MBUS (Magpul® Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.

Made in U.S.A.

The MBUS Pro (Magpul Back-Up Sight) is a corrosion resistant all-steel back-up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that's even smaller than its size.
The dual aperture, windage adjustable Rear and no-tool, elevation adjustable Front excel in all 1913 Picatinny rail mounting applications, including rail-height gas blocks. Positive detents keep the MBUS Pro Front and Rear at standard AR sight height when deployed, and so low when they are stowed that you'll never notice them until they're needed. Narrow width Front is compatible with most IR aiming laser and light installations for the professional user.
Made in U.S.A.

The new MBUS Pro LR capitalizes on the low profile and sleek styling of the original MBUS Pro, while adding the additional feature of an elevation adjustment wheel to accurately engage targets at variable distances.

Built with all steel construction, this is the sighting solution that delivers no-tool adjustments, maximum strength, corrosion resistance, and functionality in a compact package. Positive detents keep the MBUS Pro LR at standard AR sight height when deployed and so low when stowed that you will hardly notice them.

Made in U.S.A.

Building on the proven MBUS Pro platform, the MBUS Pro Offset Sights are part of an an effective aiming system to supplement magnified optics on M1913 Picatinny mounting surfaces. In the event of a damaged or nonfunctional primary optic, or a close target, rotating the rifle 45 degrees provides the shooter with a fully-featured iron sighting solution.

The MBUS Pro Offset Front Sight features durable Melonited steel construction, positive detented lockup when deployed, tool-less adjustment of the front post for easy zeroing, and a low profile footprint to ensure compatibility and reduce interference with most rifle setups.

Made in U.S.A.

Building on the proven MBUS Pro platform, the MBUS Pro Offset Sights are part of an an effective aiming system to supplement magnified optics on M1913 Picatinny mounting surfaces. In the event of a damaged or nonfunctional primary optic, or a close target, rotating the rifle 45 degrees provides the shooter with a fully-featured iron sighting solution.

The MBUS Pro Offset Rear Sight features durable Melonited steel construction, positive detented lockup when deployed, tool-less windage adjustment for easy zeroing, dual rear apertures, and a low profile footprint to ensure compatibility and reduce interference with most rifle setups.

Made in U.S.A.

The MBUS Pro (Magpul Back-Up Sight) is a corrosion resistant all-steel back-up sighting solution that delivers maximum functionality and strength with minimum bulk at a price that's even smaller than its size.
The dual aperture, windage adjustable Rear and no-tool, elevation adjustable Front excel in all 1913 Picatinny rail mounting applications, including rail-height gas blocks. Positive detents keep the MBUS Pro Front and Rear at standard AR sight height when deployed, and so low when they are stowed that you'll never notice them until they're needed. Narrow width Front is compatible with most IR aiming laser and light installations for the professional user.
Made in U.S.A.

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.
Made in U.S.A.

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.
Made in U.S.A.

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.
Made in U.S.A.

The MBUS (Magpul Back-Up Sight) is a low-cost, color injection molded, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits most 1913 Picatinny rail equipped weapons, but is specifically tailored to the AR15/M16 platform.
Made in U.S.A.

M400 Tread Adjustable flip sights that are quickly deployable, foldable and built exclusively for the TREAD picatinny rail.

*Includes Picatinny Rail and mounting screw/nut*

Super low profile and light, this new front sight pairs perfectly to our new rear sight. No tools are needed for elevation adjustment.

Material: 7075 T6 Construction
Finish: Type III Hard Coat Anodize
Features:
- Very Low Profile
- Tool-less Elevation Adjustment
- T25 Cross Bolt
- 4140 Chromoly Billet Small Parts
- Black Nitride Finish

Weight: 1.11oz

We redesigned the most common piece of a rifle on the market today, the rear sight aperture. Our new design features a sliding duel peep hole. Up is the small hole and when slid down it opens up for the larger hole. No tools are needed for windage adjustment.

Material: 7075 T6 Construction
Finish: Type III Hard Coat Anodize

Features:
- Dual Sliding Aperture
- Very Low Profile
- Tool-less Windage Adjustment
- T25 Cross Bolt
- 4140 Chromoly Billet Small Parts
- Black Nitride Finish

Weight: 1.16oz

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