18" Midlength 22 ARC Medium Stainless M-LOK Upper Assembly

A premium upper assembly engineered for precision without cutting corners. This means starting with a top-tier mil-spec forged upper receiver, featuring a premium stainless steel barrel that delivers exceptional accuracy and longevity, quality nitrided steel gas block as opposed to phosphate or aluminum, American Made M-LOK handguards, and one of the finest A2 flash hiders you’ll find anywhere. This also means taking the time to ensure that the upper will function reliably with the advanced 22 ARC cartridge. We use Permatex 242 on key components while using mil-spec AEROSHELL 33MS Anti-Seize grease on the properly torqued barrel nut and muzzle device.

Hornady’s 22 ARC Cartridge Advantages: The 22 ARC (Advanced Rifle Cartridge) represents a revolutionary leap in small-caliber performance, engineered by Hornady to deliver superior ballistics in the AR-15 platform. With its optimized case design and high ballistic coefficient projectiles, the 22 ARC provides:

• Extended Effective Range: Maintains supersonic velocities and energy significantly farther than traditional .223/5.56 cartridges
• Superior Wind Performance: High BC bullets minimize wind drift for more consistent long-range accuracy
• Enhanced Terminal Performance: Designed to deliver reliable expansion and energy transfer on target
• Efficient Powder Burn: Optimized for 18″ barrel length, maximizing velocity potential
• AR-15 Platform Compatibility: Designed specifically to function flawlessly in standard AR-15 receivers

Why 18″ Midlength Gas System: The 18″ barrel length is the sweet spot for 22 ARC performance, allowing complete powder burn and maximum velocity while maintaining excellent handling characteristics. The midlength gas system provides smooth cycling, reduced port pressure, and enhanced accuracy compared to carbine-length systems.

Stainless Steel Barrel Benefits: Our premium stainless steel construction offers superior corrosion resistance, enhanced accuracy potential, and extended barrel life compared to traditional carbon steel barrels. The medium contour provides an optimal balance of rigidity for accuracy and weight management for practical use.

Bottom line is this: you hear all the time about guys buying a budget upper and it not lasting or having to send it back because of some hardware defect or other issue caused by a careless assembly process. That is why we use top-tier components and assemble each unit to the highest standard of quality. We want your upper to function flawlessly out of the box with the precision-demanding 22 ARC cartridge. In fact, we guarantee it will.

Buy with confidence, this upper is backed by our 30 day satisfaction guarantee. Buy it, run it, test its long-range capabilities, and if you aren’t satisfied you can send it back for a full refund.

• Lifetime Warranty
• Guaranteed Sub-MOA performance with quality 22 ARC ammunition and proper shooting technique
• Made in the USA
• 18″ Stainless Steel Barrel – Medium contour for optimal accuracy and weight balance
• Midlength Gas System – Smooth cycling and enhanced accuracy
• Premium M-LOK Handguard – Lightweight and versatile mounting options
• Optimized for 22 ARC – Engineered to maximize the cartridge’s long-range potential