Battle Arms Development WORKHORSE 16in Upper 1-7 Twist 5.56 NATO

The Battle Arms Development WORKHORSE is an assembled AR-15 upper designed for general-purpose use. It features a 16-inch barrel with a 1-7 twist and is chambered for .223 Rem / 5.56 NATO. The upper is fitted with an M-LOK handguard and finished in black anodize. It is intended to mate with standard AR-15 lowers for upgrades, repairs, or custom builds.

Key Specifications

• The caliber/cartridge is .223 Rem / 5.56 NATO.
• The barrel length is 16 inches.
• The rifling twist is 1-7 twist.
• The handguard uses M-LOK attachment slots.
• The exterior finish is anodized.
• The color is black.
• The upper is built to fit AR-15 lowers.
• The model name is WORKHORSE.
• The product type is a Complete Upper Receiver.
• The style is assembled.

With its straightforward configuration and common feature set, the WORKHORSE upper offers a practical foundation for range use, training, or duty-style builds. The combination of a 16-inch, 1-7 twist barrel and M-LOK handguard provides flexibility for a wide range of standard AR-15 applications while maintaining a durable, no-nonsense specification set.