One Horse AR15 Builder Set – Forged Upper, Forged Lower & 15" M-LOK Free Float Handguard

Build your next AR15 with confidence using the One Horse AR15 Builder Set, featuring a forged 7075-T6 stripped upper receiver, forged 7075-T6 stripped lower receiver, and a premium 15" M-LOK Slim Design Free Float Handguard. Designed for builders who demand Mil-Spec compatibility, rugged durability, and modern performance, this builder set provides the ideal foundation for creating a custom AR15 tailored to your exact needs.

At the heart of this package are matching forged upper and lower receivers precision machined from 7075-T6 aluminum. Forged construction offers superior strength-to-weight performance and long-term durability while maintaining true Mil-Spec compatibility with standard AR15 components. Whether you're assembling a duty rifle, competition gun, hunting setup, or all-purpose carbine, the One Horse receiver set delivers the fit, function, and reliability serious shooters expect.

Completing the package is the One Horse 15" Slim Design M-LOK Handguard. Built from lightweight aluminum and finished with durable Type III hardcoat anodizing, this free-float handguard enhances accuracy potential while providing extensive accessory mounting capability. Its slim profile offers excellent ergonomics and comfortable handling, while the extended 15" length maximizes rail space for lights, lasers, grips, bipods, and other accessories.

Proudly made in the USA and built to Mil-Spec standards, the One Horse Builder Set is an outstanding starting point for any AR15 project.

Features

• Complete One Horse AR15 Builder Set

• Forged 7075-T6 Stripped Upper Receiver

• Forged 7075-T6 Stripped Lower Receiver

• 15" M-LOK Slim Design Free Float Handguard

• Mil-Spec Compatible Components

• Precision Machined for Proper Fitment

• Hardcoat Anodized Finish

• Lightweight Yet Extremely Durable Construction

• Free Float Design for Enhanced Accuracy

• Continuous Top Picatinny Rail

• M-LOK Accessory Mounting System

• Steel Barrel Nut and Hardware Included

• Made in the USA

Builder Set Includes

One Horse AR15 Stripped Lower Receiver

The foundation of your AR15 build, forged from 7075-T6 aluminum and finished with hardcoat anodizing for exceptional durability and corrosion resistance.

• Forged 7075-T6 Aluminum

• Hardcoat Anodized Finish

• Mil-Spec Compatible

• Precision Machined

• Accepts Standard AR15 Lower Components

One Horse AR15 Stripped Upper Receiver

Designed to provide a strong, lightweight platform for barrels, handguards, and internal components while maintaining precise alignment and compatibility.

• Forged 7075-T6 Aluminum

• Mil-Spec Design

• Precision Machined

• Compatible with Standard AR15 Components

• Made in the USA

One Horse M-LOK Slim Design 15" Handguard

A lightweight free-float rail system offering exceptional ergonomics and extensive mounting flexibility for modern AR15 builds.

• 15" Length

• Slim Profile Design

• Free Float Construction

• M-LOK Modular Attachment System

• Continuous Picatinny Top Rail

• Lightweight Aluminum Construction

• Type III Hardcoat Anodized Finish

• Steel Barrel Nut Included

• Mounting Hardware Included

• Compatible with Mid-Length and Rifle-Length Gas Systems

• Made in the USA

Why Choose the One Horse Builder Set?

By pairing matching forged receivers with a premium free-float M-LOK handguard, the One Horse Builder Set eliminates the guesswork of sourcing critical AR15 components separately. The forged receiver set provides outstanding durability and Mil-Spec compatibility, while the free-float handguard enhances accuracy potential and delivers modern modularity for lights, lasers, optics, sling mounts, grips, and other accessories.

Whether you're building a hard-use defensive rifle, a competition setup, a hunting gun, or a general-purpose carbine, the One Horse Builder Set provides a premium foundation engineered to perform for years to come.

UPCs

• One Horse AR15 Stripped Lower Receiver – UPC: 850078799357

• One Horse AR15 Stripped Upper Receiver – UPC: 850078799043

• One Horse M-LOK Slim Design 15" Handguard – UPC: 850078799180