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Knights Armament
Overview
The Knights Armament URX 4 M-Lok Handguard is a robust aluminum handguard designed for the AR-15 platform, measuring 15 inches in length. It features an M-LOK mounting interface, allowing for versatile attachment of accessories without adding unnecessary weight. This handguard is often found on builds utilizing a carbine gas system in 5.56 NATO caliber, providing builders with a reliable and functional option for their setups.
Specifications
Knights Armament Urx 4 M-LOK Handguard 14.5"
Build history on GunPartPicker
Builders have added the Knights Armament Urx 4 M-LOK Handguard 14.5" to their builds on GunPartPicker. Since April 2026, it ranks #147 of the 885 handguards builders have added. Builds with this handguard are mostly chambered in 5.56 NATO (67%, then .223 Wylde 22%), split between carbine-length (50%) and rifle-length (33%) gas systems, and nearly all AR-15.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $302.99 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Wilson Combat AR-15 Billet Upper Receiver
Radian Weapons AR-15 Raptor/talon L/s Combo Black Anodized
Wilson Combat AR-15 Lower Receiver Forged
Bravo Company M16 Bolt Carrier Group Black
Yankee Hill Machine Co. AR-15 Gas Tube Black Rifle
Bravo Company AR-15/M16 .750 Low-Profile Gas Block
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Knights Armament Urx 4 M-Lok Handguard 14.5"
| Build | Parts | Total |
|---|---|---|
 | 14 | $2087.04 |
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