Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223

Name: Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223
Brand: Battle Arms Development
SKU: WH-UR-10.5-223
Price: 499.99 USD
Availability: OutOfStock

$Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223 - Upper Receiver for AR-15 - view 1$

$Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223 - Upper Receiver for AR-15 - view 2$

$Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223 - Upper Receiver for AR-15$

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Battle Arms Development

Overview

The Battle Arms Development WORKHORSE AR-15 Upper Receiver features a complete assembly with a 10.5-inch barrel chambered in .223 Wylde, allowing it to safely fire both .223 Remington and 5.56 NATO cartridges. The 1:8 twist rate is optimized for stabilizing a wide range of bullet weights, making it versatile for various applications, from target shooting to home defense. This upper receiver is commonly found in builds that prioritize the .223 Wylde caliber, providing builders with a reliable and adaptable option for their AR-15 platform.

Specifications

MPNWH-UR-10.5-223

Twist Rate1:8

Barrel Length8

PlatformAR-15

Thread Pitch1/2x28

Caliber.223 Wylde

AssemblyComplete

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Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223

Available Merchants(1)

Prices checked Sep 28, 2026

Stock Alert

Classic Firearms

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Out of Stock

$500

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Build history on GunPartPicker

Builders on GunPartPicker first added the Battle Arms Development WORKHORSE AR-15 Upper Receiver, 10.5\" .223 Wylde 1:8 Barrel, 9.5in M-LOK Handguard - No BCG or Charging Handle - WH-UR-10.5-223 to a build in February 2026.

It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $499.99 at Classic Firearms for when it comes back.

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Updated Sep 29, 2026 · from real builds on GunPartPicker · Prices checked Sep 28, 2026 · refreshed daily across 35 retailers