Knights Armament 1.65" Flip-Up M4 Front Sight Steel Black

Knights Armament 1.65" Flip-Up M4 Front Sight Steel Black - Front Sight for AR-15 - view 1
Knights Armament 1.65" Flip-Up M4 Front Sight Steel Black - Front Sight for AR-15 - view 2
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Knights Armament

Overview

The Knights Armament 1.65" Flip-Up M4 Front Sight is a reliable steel sight designed for quick deployment and low-profile storage. With its 1.65-inch height, it provides optimal alignment for your optics, ensuring that you can transition seamlessly between sighting systems. This front sight is commonly found in pistol builds chambered in 5.56 NATO, making it an ideal choice for builders looking for durability and functionality in a compact package.

Specifications

MPN99051-BLK
MaterialSteel
Height1.65
StyleFlip-Up
ColorBlack

Available Merchants(3)

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BattleHawk Armory logo
BattleHawk Armory
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Out of Stock
$214.58
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KY Gun Company
Flat rate shipping
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$218.81
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Brownells
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$249.99

October 2026 on GunPartPicker

Knights Armament 1.65" Flip-Up M4 Front Sight Steel Black ranked #15 of the 33 front sights builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #22 of the 68 front sights builders have added. Builds with this front sight are mostly chambered in 5.56 NATO (63%, then 7.62x51 NATO 16%), mostly on carbine-length gas (80%, then mid-length 20%), and mostly AR-15 (95%).

It was out of stock everywhere we track every time we checked in October 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $214.58 at BattleHawk Armory for when it comes back.

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Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

94.7%
AR-1594.7%
AR-105.3%

Caliber

63.2%
5.56 NATO63.2%
7.62x51 NATO15.8%
.223 Wylde10.5%
.308 Win5.3%
300 Blackout5.3%

Gas System

80%
Carbine80%
Mid-Length20%

Builds Featuring This Part

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Builds in the community that include the Knights Armament 1.65" Flip-Up M4 Front Sight Steel Black

BuildPartsTotal
Franklin armory 11.5" 5.56 build
Franklin armory 11.5" 5.56
36$18617.07

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