Rise Armament Ra-22Arc-Cu-Blk-18 Ar15 Cmpt Upper 22Arc Blk

The Rise Armament .22 ARC AR-15 complete upper receiver delivers precision and versatility for shooters looking to run an intermediate cartridge without a full platform change. Built on a forged billet aluminum receiver and topped with an 18-inch 416R stainless steel barrel, this upper rides the growing wave of .22 ARC popularity—a round that splits the difference between 5.56 and .308 ballistics, making it ideal for medium-range hunting, precision rifle matches, and shooters who want effective performance from a lightweight, modular platform.

The barrel is button-rifled with a 1:7 twist, air-gauged and tested for consistency, then threaded at 1/2"x28 for muzzle devices. A fluted profile keeps weight down without sacrificing stiffness. The free-floating handguard is skeletonized aluminum fitted with continuous Picatinny rail at 12 o'clock, M-LOK slots for mounting, and four threaded steel QD sling swivel inserts—real attachment points instead of plastic clips. Rise's patent-pending attachment lock system keeps zero intact through repeated mounting cycles, a detail that matters when you're building something you'll actually rely on.

The bolt carrier group uses a 9310 bolt, individually MPI tested, with a staked gas key and durable black nitride finish that handles extended shooting sessions. The ambidextrous charging handle works from both sides and clears optics and gloved hands without fuss. The upper comes in black Type III hardcoat anodize, with Dark Gray Cerakote and Patriot Brown Cerakote options available for shooters with stronger aesthetic preferences.

Rise backs the entire assembly with a lifetime warranty, reflecting confidence in the build quality. The .22 ARC upper runs a rifle-length gas system and accepts any standard AR-15 lower receiver, making it a straightforward drop-in for existing 5.56 builds or a clean starting point for a dedicated intermediate-cartridge rig.

Key Features

• 18-inch 416R stainless steel barrel—button-rifled, fluted, air-gauged, and threaded 1/2"x28
• Free-floating skeletonized aluminum handguard with continuous 12 o'clock Picatinny rail and M-LOK slots
• Four threaded steel QD sling swivel inserts for genuine attachment flexibility
• Patent-pending attachment lock maintains zero through repeated mounting
• RISE ambidextrous charging handle for right- or left-handed operation
• Premium 9310 bolt carrier group, individually MPI tested with staked gas key
• Black nitride finish for durability and corrosion resistance
• Forged billet aluminum receiver in black anodize, with Dark Gray and Patriot Brown Cerakote options
• Rifle-length gas system optimized for .22 ARC ballistics
• Lifetime warranty from Rise Armament

Specifications

Frequently Asked Questions

What lower receiver does the Rise Armament .22 ARC upper work with?

This is a complete AR-15 upper receiver that accepts any standard AR-15 lower receiver, so you can use it with existing lowers you own or pair it with a new lower to complete the rifle.

Is the .22 ARC upper good for hunting?

Yes. The .22 ARC cartridge performs well for medium-range hunting applications, splitting ballistic capability between 5.56 NATO and larger calibers. The 18-inch barrel and 1:7 twist rate are optimized for .22 ARC ammunition.

Can I mount my favorite scope or red dot on this upper?

Yes. The handguard includes continuous Picatinny rail at 12 o'clock plus M-LOK slots, giving you standard mounting options for optics. The ambidextrous charging handle is designed to clear optics and doesn't interfere with sight mounting.

What barrel length and twist rate does this come with?

The Rise Armament .22 ARC upper features an 18-inch 416R stainless steel barrel with a 1:7 twist rate, optimized for the .22 ARC cartridge.