Take your AR pistol build to the next level with the Moriarti AR-45 .45 ACP 8" Side Charging Upper Assembly, built with Last Round Bolt Hold Open (LRBHO) and included bolt carrier group (BCG). Precision machined and designed for Glock-style or traditional AR-45 lowers, this upper is perfect for those demanding a rugged and efficient .45 ACP blowback system.
Machined from 7075-T6 billet aluminum, this upper features a durable side charging design for better ergonomics and enhanced shooting control. With a match-grade 8" 4150 CMV barrel and M-LOK handguard, it’s an optimal choice for home defense, range, or tactical use.
Please note: Uppers are manufactured on a monthly cycle. Expect approximately an 4-week lead time.
Barrel:
Length: 8"
Caliber: .45 ACP
Material: 4150 CrMoV
Twist Rate: 1:16
Muzzle Threads: 5/8x24 (A2 flash hider installed)
Finish: Black Nitride
Integrated feed ramp – blowback system
Upper Receiver:
Side Charging Billet Upper – Non-reciprocating
7075-T6 Aluminum
Type III Class 2 Hardcoat Anodized
Includes Last Round Bolt Hold Open (LRBHO)
Compatible with Glock-style and AR-45 billet lowers
Handguard:
7" Free-Floating Slim M-LOK Rail
Aircraft-grade aluminum, hardcoat anodized
Bolt Carrier Group (Included):
.45 ACP ramped BCG
8620 steel, mag phosphate finish
M16 cut
Glock & Colt mag compatible
Charging Handle:
Side charging handle included
For optimal performance, pair with a 8-10 oz heavy buffer system.
Compatible with Moriarti Glock billet lower receivers for LRBHO function.
Pair with the Moriarti AR-45 Billet Lower Receiver with LRBHO
Tags: ar-45, .45, acp moriarti, 8 8", side, charging, upper, lrbho, bcg, included