Upgrade your AR-15 with the Moriarti Arms 18" .223 Wylde Stainless Upper Assembly, designed for both 5.56 NATO and .223 Remington. This complete upper assembly comes with a 15" M-LOK handguard, BCG, and Charging Handle, offering everything you need to enhance your shooting experience. Perfect for those who want precision and versatility, this assembly features a stainless steel barrel, mid-length gas system, and high-quality components.
Key Features:
Barrel:
18" 416R Stainless Steel HBAR Contour Barrel
Hardened to 26-32 RC and stress relieved
Chambered in .223 Wylde for compatibility with both 5.56 NATO and .223 Remington
1-8 RH Twist, Button Rifled, 6 Grooves
.750 Diameter Under Gas Block
1/2-28 Threads
Completed with Multiport Muzzle Brake and Crush Washer
M4 Feedramps
Upper Receiver:
A3 Flat Top Upper
Made from Certified 7075-T6 Aluminum Forging
Black Hardcoat Anodized to Government Specifications
Includes Forward Assist and Dust Cover
Gas System:
Low Profile .750 Steel Gas Block
Black Hardcoat Anodized
Mid-Length Gas System for smoother recoil and reliable cycling
Stainless Steel Gas Tube
Handguard:
15" Slim Free Floating M-LOK Rail
Made from Aircraft Quality Aluminum
Black Hardcoat Anodized for enhanced durability and resistance to wear
M-LOK Slots for a wide variety of attachment options
Bolt Carrier Group (BCG):
M16 Profile
Nitride Coated for superior hardness and wear resistance
Serrated for Enhanced Grip
Charging Handle:
AR-15 Mil-Spec Charging Handle
Specifications Summary:
Barrel: 18" 416R Stainless Steel, .223 Wylde
Gas Block: .750 Low Profile Steel
Handguard: 15" Slim M-LOK Rail
Muzzle Device: Multiport Muzzle Brake
Twist Rate: 1-8 RH
Upper Receiver: A3 Flat Top, 7075-T6 Forging
Bolt Carrier Group: M16 Profile, Nitride Coated
Charging Handle: Mil-Spec
Note:
This is a complete upper assembly, ready to mount to a mil-spec AR-15 lower receiver.
BCG and Charging Handle are included.
Does not include sights or a magazine.
Images may not be an exact representation of the product; components may vary based on stock availability.