American-made rifle upper receiver in matte black finish, featuring a rail system and precision craftsmanship for reliability.

Black AR-15 upper receiver showcasing precision engineering and durable materials, designed for reliability and performance.

Black rifle upper receiver featuring a sleek design, rail system, and durable construction for reliability and performance.

Details

7.5″ 5.56/.223 Complete Upper Receiver – 7″ M-Lok Handguard, Nitride BCG & Charging Handle SKU: OH-CU03 UPC: 850078799302

Maximize mobility with this ultra-compact 7.5″ 5.56 NATO Complete Upper Receiver. Featuring a 7.5″ barrel with a 1:7 twist rate, this upper ensures reliable bullet stabilization for 5.56 NATO ammunition, making it ideal for close-quarters tactical, home defense, or AR15 pistol builds. The 7″ M-Lok handguard offers a lightweight, modular platform for mounting accessories, while the nitride-finished bolt carrier group delivers smooth cycling, enhanced durability, and low maintenance. Complete with a charging handle and built to Mil-Spec standards, this upper is ready to pair with any AR15 Mil-Spec lower receiver for a seamless, high-performance setup.

7.5″ 5.56 NATO barrel with 1:7 twist for versatile performance
7″ M-Lok handguard for secure, customizable accessory attachment
Nitride-finished BCG for corrosion resistance and smoother operation
Includes charging handle and Mil-Spec upper receiver for drop-in compatibility
Made in the U.S.A
Ready to mount on any Mil-Spec AR15 lower receiver Build your ultimate compact 5.56 rifle—add to cart now!

7.5″ 5.56/.223 Complete Upper Receiver – 7″ M-Lok Handguard, Nitride BCG & Charging Handle

UPC: 850078799302

SKU: OH-CU03

Categories: Complete Uppers, Parts

MSRP: Original price was: $349.99.Current price is: $299.99.

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SPECIFICATIONS

Caliber: 5.56mm NATO

Barrel Profile: Medium

Muzzle Thread: 5/8X24

Twist Rate: 1/7

Gas System: Pistol

Material: 4150

Handguard Length: 7 in.

Charging Handle: Standard

Manufacturer: One Horse

Country of Origin: U.S.A.

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