AR-15 .22 ARC 20" HBAR Upper Assembly – Stainless Steel, M-LOK

.22 ARC 20" HBAR Upper: Specs

Specifications:

Barrel - 20" heavy barrel. Chambered in 22 ARC, 1:7 twist. 416R STAINLESS STEEL. .750 diameter under gas block. RIFLE length gas system. Threaded for a muzzle brake. 1/2x28 pitch. Finished off with our A2 birdcage and a crush washer in nitride. M4 feedramps. 

A3 flat top upper receiver - Moriarti's forged upper receiver, made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to gov.specs. Forward assist and dust cover installed. M4 feedramps.

Gas system - .750 low profile gas block made from steel, rifle length gas tube.

Handguards - 15" free floating M-LOK handguard. Made from aircraft quality aluminum and black hardcoat anodized. May vary from stock photo in design. The same excellent quality.

Upper does not come with BCG and Charging Handle. Add-on options available on top of this page. Images may not be an exact representation of the product.

FAQ

Will this upper fit my AR-15 lower?

Yes. It fits a standard mil-spec AR-15 lower receiver.

What bolt and magazines do I need?

A 6.5 Grendel-type bolt carrier group and 6.5 Grendel / ARC-family magazines. A standard 5.56 bolt will not work.

What twist rate does it use?

A 1:7 twist, fast enough for the long, high-BC bullets .22 ARC is built around.

Are a BCG and charging handle included?

No. Add a 6.5 Grendel-type bolt carrier group and a standard AR-15 charging handle.

Related: .22 ARC uppers · AR-15 upper assemblies