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.
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.
Tags: ar-45, .45, acp, 16 moriarti, 16 16", slick, side, m-lok, upper, with, bcg, non-lrbho