Moriarti AR-45 .45 ACP 16" Slick Side M-LOK Upper with BCG & CH | Non-LRBHO

Uppers

Moriarti AR-45 .45 ACP 16" Slick Side M-LOK Upper with BCG & CH | Non-LRBHO

Build your AR-45 the right way with this Moriarti Armaments premium upper receiver assembly – chambered in .45 ACP and built on a slick side billet upper for clean aesthetics and smooth cycling. Designed without LRBHO (Last Round Bolt Hold Open) for increased compatibility and California compliance, this complete package is perfect for your blowback AR-45 build.

Key Features:

• Barrel: 16” match-grade barrel chambered in .45 ACP

  • 4150 CrMoV steel, black nitride finish

  • Twist rate: 1:16 RH

  • Threaded 5/8x24 with integrated feed ramp

  • Topped with CLAW multiprong muzzle brake

• Upper Receiver:

  • “Slick Side” billet upper made from 7075-T6 aluminum

  • Mil-Spec Type III hardcoat anodized

  • No dust cover or forward assist

  • Compatible with AR-15/AR-9/AR-45 standard components

• Gas System:

  • Blowback operation for enhanced reliability with .45 ACP

• Handguard:

  • 15" slim M-LOK free-float rail

  • Lightweight aircraft-grade aluminum

  • Hardcoat anodized for durability and accessory compatibility

• Bolt Carrier Group:

  • Precision-milled, M-16 cut, ramped BCG

  • 8620 steel, phosphate finish

  • Works with Glock-style or traditional AR-45 lowers

• Charging Handle:

  • Standard AR-style charging handle included

Note: This upper does not include LRBHO functionality. Compatible with Glock magazine AR-45 lowers and standard .45 ACP blowback systems. CA compliant design. Images may not be the exact representation of the product.