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Knights Armament
Overview
The Knights Armament URX 4 M-Lok Handguard is a 13-inch aluminum handguard designed specifically for the AR-15 platform. Featuring an M-LOK mounting interface, this handguard allows for easy attachment of accessories while maintaining a lightweight and durable profile. It is commonly found in builds utilizing a blowback gas system and chambered in 5.56 NATO, making it a solid choice for versatile shooting applications.
Specifications
Knights Armament Urx 4 M-LOK Handguard 13"
October 2026 on GunPartPicker
Knights Armament Urx 4 M-LOK Handguard 13" ranked #98 of the 290 handguards builders added on GunPartPicker in October 2026.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $289.99 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
Strike Industries LINK Curved Foregrip - Black
Magpul MOE K2+ Grip Polymer Flat Dark Earth
CMMG AR-15 A2 Compensator KIT 1/2-28 5.56mm
Rosco Manufacturing Bloodline 9mm AR-15 Barrel Medium Weight - 14.5"
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Foxtrot Mike Products Complete Fm-15 Gen 2 .223 Wylde AR-15 Upper Receiver - 9" Barrel - Fixed Gas Block
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with 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 13"
| Build | Parts | Total |
|---|---|---|
 | 14 | $1679.17 |
| 12 | $1392.31 |
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