


Click to see full view
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.
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.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every front sight by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Front Sight Guide →The part most often added in each category by the builds that include this one

Franklin Armory 2012 BFS Marked Stripped Lower Receiver

Knights Armament AR-15 Flip-Up Adj Tactical Rear Sight 300 Meter Black

Franklin Armory BFSIII HK-C1 Binary Firing System Trigger - 5603A

SureFire XVL2-IRC Pistol/Carbine Weapon Light and Laser Module - 400 Lumen/300mW/850NM - Tan

Tango Down Short Quick Disconnect Vertical Grip - Black

FN America Charging Handle Assembly
Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Knights Armament 1.65" Flip-Up M4 Front Sight Steel Black
| Build | Parts | Total |
|---|---|---|
![]() | 36 | $18617.07 |
No reviews yet. Be the first to review this product!