24″ 223 Wylde Diamond-Fluted Stainless AR-15 Upper

Precision-built 24″ AR-15 target/varmint upper with a 416R stainless, diamond-fluted barrel chambered in 223 Wylde (5.56 NATO compatible). Assembled, test-fired, and QC’d in-house — ready to drop on your lower. Add a BCG & charging handle from the options menu for a fully tested upper.

• 24″ 416R stainless, diamond-fluted barrel for improved heat dissipation & balanced swing-weight
• 223 Wylde chamber: reliably shoots .223 Rem & 5.56 NATO
• 1/2-28 threaded muzzle for compatibility with modern muzzle devices
• .936 low-profile gas block + rifle-length gas system for smoother cycling & reduced recoil impulse
• 15″ M-LOK free-float handguard — built for precision and modularity
• 7075-T6 Mil-Spec anodized upper receiver with M4 feed ramps, dust-cover & forward assist
• Fully assembled, test-fired and headspace-checked in-house — backed by a limited lifetime warranty
• Option to add a bolt-carrier group (BCG) & charging handle — we’ll install, test-fire, and check headspace if selected

Why Choose This Upper?

Upgrade your build with a purpose-built AR-15 upper engineered for accuracy, durability, and consistent performance. The 24-inch diamond-fluted 416R stainless barrel delivers a rigid, heat-resistant platform that reduces harmonic shift and improves shot-to-shot consistency — ideal for target work or varmint hunting.

Chambered in 223 Wylde, this upper gives you the flexibility to shoot both .223 Rem and 5.56 NATO without sacrificing accuracy. Paired with a rifle-length gas system and a .936 low-profile gas block, you’ll benefit from smoother cycling, lighter recoil impulse, and reliable extraction.

Every upper is built to order using proven components and assembled by our experienced technicians. We test-fire each build (or build + BCG/charging handle when selected) and perform headspace checks to ensure dependable function from day one. Backed by our limited lifetime warranty, this upper is ready for the range, competition, or the field.

Specifications

Ships ready to install. Free shipping on orders over $350. Limited lifetime warranty included.

FAQ

What is 223 Wylde and why choose it? 223 Wylde is a hybrid chamber that safely and accurately shoots both .223 Rem and 5.56 NATO. It’s a popular choice in precision AR-15 builds because it offers better accuracy potential than a standard 5.56 chamber while maintaining safe performance.

Is this upper ready to shoot? Yes — this upper is assembled and test-fired in-house. If you add a BCG & charging handle at checkout, we will install them and verify headspace and function. If you choose not to add them, the upper is otherwise complete and ready to be paired with your lower and BCG.

What muzzle devices fit the 1/2-28 threading? 1/2-28 is the standard thread pitch for .223/5.56 muzzle devices, including many brakes, compensators, and most direct-thread suppressor mounts.

What does the warranty cover? We offer a limited lifetime warranty on our uppers covering defects in materials or workmanship. If an issue arises, contact our support team and we’ll repair or replace the product as necessary.