AR-15 7.62x39 10.5" Pistol Upper with 7" Fake Can and M-LOK Rail | Moriarti Arms

The Moriarti Arms 7.62x39 AR-15 10.5" Pistol Upper Assembly is a rugged, USA-made upgrade designed for compact power and sleek style. Perfect for those running mil-spec AR-15 lower receivers, this upper delivers the reliability and compatibility you expect with AK-caliber punch.

Featuring a 10.5” 4150 CMV heavy barrel, it’s chambered in 7.62x39 and finished in black phosphate for superior durability. The M4 feedramps ensure smooth cycling, while the 1:10 twist rate provides excellent stabilization for common 123gr–125gr loads.

This setup includes Moriarti’s Gen 2 7" Fake Can muzzle device (non-pinned), bringing the total length to approx. 16.5”—allowing for SBA3-style pistol builds that maintain a compliant overall length under certain configurations. The 10" free-floating M-LOK handguard gives you plenty of room for accessories while keeping the front end light and maneuverable.

Technical Specs

• Caliber: 7.62x39

• Barrel Length: 10.5" Heavy Profile

• Barrel Material: 4150 CMV

• Twist Rate: 1:10 RH

• Barrel Finish: Phosphate

• Muzzle Thread: 5/8x24

• Muzzle Device: 7" Fake Can Gen 2 (not pinned)

• Overall Length w/ Can: ~16.5"

• Gas System: Carbine Length

• Gas Block: Low-profile, .750 steel

• Receiver: Forged 7075-T6 A3 Flat Top, hardcoat anodized

• Handguard: 10" Slim Free Float M-LOK, aircraft-grade aluminum

• Feedramps: M4

• BCG & Charging Handle: Not included

Compatibility

• Compatible with any mil-spec AR-15 lower receiver

• Great fit with AR-15 pistol builds using SBA3, SBA4, or PDW braces

Notes

• All components proudly Made in the USA

• Fake suppressor is not pinned or welded

• Images may not exactly represent actual product

Looking for a complete package? Pair this upper with the Moriarti 7.62x39 Enhanced Pin for best reliability in AK-caliber AR platforms.