Moriarti AR-10MM 16" Slick Side M-LOK Complete Upper Receiver w/ LRBHO

Uppers

AR-10MM 16" Slick Side M-LOK Complete Upper Receiver w/ LRBHO, BCG & Charging Handle – Moriarti Arms

The AR-10MM 16" Slick Side Complete Upper with Last Round Bolt Hold Open (LRBHO) is engineered for superior performance in your AR-style 10mm build. Crafted from billet 7075-T6 aluminum, this upper features a match-grade barrel, a slim M-LOK free-float handguard, and a fully assembled bolt carrier group and charging handle—all precision machined and assembled in the USA by Moriarti Arms.

Upper Features:

• Barrel: 16" 10MM match-grade barrel, 4150 CrMo steel, black nitride finish, 1:16 twist, 9/16x24 threaded with A2 flash hider

• Upper Receiver: Slick side billet receiver, 7075-T6 aluminum, Type III hardcoat anodized, LRBHO-enabled

• Handguard: Rifle-length slim M-LOK free-floating rail, aircraft-grade aluminum, black anodized finish

• Bolt Carrier Group (BCG): Ramped, compatible with Glock and Colt lowers, 8620 steel, mag phosphate finish

• Charging Handle: Standard mil-spec AR-15

• Gas System: Blowback

• Compatibility: Designed for use with most 10mm/.40 S&W AR-15 lower receivers

• Assembly: Fully assembled and function tested

• Origin: Made in the USA

• Lead Time: Estimated shipping in 6–8 weeks

Looking for a compact option? Check out the Moriarti AR-10MM 8.5" Slick Side M-LOK Complete Upper Receiver w/ LRBHO.

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