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Gas Block

114 reviews
$38.99 $45.99

AT3 Tactical Flip Up Backup Iron Sights (BUIS) provide dead-on accuracy, superior durability, and the best value for AR-15 iron sights! Available in 2 types: Gas Block Sights - for mounting on gas blocks that are lower than the upper receiver (usually about 1/4" lower than the upper receiver rail) Same Plane Sights - Made for mounting on quad rails or...

No reviews
$61.85

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. Features Impact resistant polymer construction provides light weight and resists operational abuse Spring-loaded flip up sight easily...

6 reviews
$112.99 $119.00

Troy Rear Battle Sight Black - Folding - Optional Tritium. Durability and dead-on accuracy have made Troy Industries Folding BattleSights the hands-down choice of Special Ops and tactical users worldwide. Easy to install and to deploy, with no levers or springs to fumble with, these sights position apertures at exact factory height. A stainless-steel cross-locking system ensures sights remain upright...

2 reviews
$112.99 $119.00

Di-Optic Aperture (DOA) Folding Rear Sight with Optional Tritium Illumination Advanced design, superior sighting and battle-ready toughness define Troy Industries' Di-Optic Aperture (DOA) Folding Rear BattleSight. These sights provide lightning fast target acquisition and are manufactured to exceed military specs. The optically engineered apertures center your eyes instantly and effortlessly providing a clearer target picture than with round apertures. Optionally...

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No reviews
$70.85 $76.50

The TRUGLO Tactical AR-15 gas block sight is the industry's BRIGHTEST AR-15 fiber-optic gun sight. Extra long, super bright, protected green fiber. Integral mount for Mil-Spec. 1913 Picatinny rails. Designed to mount on front gas blocks. Includes optional push-button light for use in complete darkness. CNC-machined construction. Green front. Features: - The industry's BRIGHTEST AR-15 fiber-optic gun sight. - Extra...

2 reviews
$60.99 $65.00

Troy Rear Battle Sight – Fixed Looking for rock solid stability and dead-on accuracy in a fixed sight? Troy Industries Fixed Battle Sights get the job done. This permanent, rail-mounted alternative to a standard A2 sight allows limitless mounting options on all-length rails with a serrated ramp to eliminate glare. Provides a continuous zero, unflinching durability and peace of mind....

3 reviews
$60.99 $65.00

Di-Optic Aperture (DOA) Fixed Rear Sight with Optional Tritium Illumination Advanced design, superior sighting and battle-ready toughness define Troy Industries' Di-Optic Aperture (DOA) Folding Rear BattleSight. Looking for rock solid stability and dead-on accuracy in a fixed sight? Troy Industries Di-Optic Aperture (DOA) fixed sights get the job done with an advanced design, superior sighting ability and battle-ready toughness. This...

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No reviews
$121.99 $129.00

Troy M4 Style Front Sight - Gas Block Height - Folding.  These are rugged, reliable, combat ready Battle Sights that mount securely on the gas block. Easy to install and to deploy, with no levers or springs to fumble with, these sights position apertures at exact factory height. A stainless-steel cross-locking system ensures sights remain upright and zeroed under extreme...

No reviews
$121.99 $129.00

Troy HK Style Front Sight - Gas Block Height - Folding - Optional Tritium. These are rugged, reliable, combat ready Battle Sights that mount securely on the gas block. Easy to install and to deploy, with no levers or springs to fumble with, these sights position apertures at exact factory height. A stainless-steel cross-locking system ensures sights remain upright and...

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1 review
$123.85

Diamondhead DIAMOND Gas Block Front Combat Sight for AR15 The Diamondhead DIAMOND (Gas Block) Front Sight mounts directly to an existing railed gas block of the reduced gas block height. The gas block sight comprises a proprietary Diamondhead Premium sight base (of increased height to compensate for the lower gas block) and a Premium DIAMOND upper sight housing. Features: -...

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1 review
$235.85 $248.00

This set includes the acclaimed Diamondhead Gen2 Rear Sight with the increased-height Diamond "Gas Block" Front Sight. Front sight is for mounting on gas blocks that sit lower than a flat top upper receiver. Features DIAMOND Rear Sight: Proprietary Diamond-Shaped apertures for faster target acquisition & centering Proprietary reference posts and horizon bars Dual same plane short and long range...

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No reviews
$133.45

Got Diamondhead VRS Drop-In and Free-Floating Handguards or any Mil Std M1913 Picatinny rail systems? Equip it with Diamondhead's DIAMOND Flip-Up Rear Sight, for faster and greater precision. Diamondhead's DIAMOND Flip-Up Rear Sight's revolutionary design incorporates the original and proprietary Diamond-Shaped Apertures™ (Pat. & Pat. Pend.) and a re-designed upper housing - allowing the eye to place the front sight...

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The MBUS® Pro 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...

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Flip-up tactical rear sight with dual aiming apertures - Ideal for AR15, M16, M4 and picatinny/weaver flat top style rails - Precise windage adjustments - Flip-up posi-lock design to guarantee zero - Easy access locking thumb nut for easy installation Specifications: - Rail Type: Picatinny/Weaver - Rail Length: 0.86 inch - Warranty: 1 Year Limited - Weight: 3.2 oz