18" 223 Wylde Upper - 4150 CMV HBAR Barrel - 15" MLOK Rail

18" 223 Wylde Upper for AR-15 with 4150 CMV HBAR Barrel and 15" M-LOK Rail

The 223 Wylde chamber combines the accuracy potential associated with .223 Remington with the ability to safely fire both .223 Remington and 5.56 NATO ammunition. This versatile chambering is well suited for target shooting, competition, varmint hunting, predator hunting, and dependable general-purpose AR-15 builds. This 18" 223 Wylde upper features a 4150 chrome moly steel HBAR barrel, 1:8 twist rate, mid-length gas system, and lightweight 15" free-float M-LOK handguard for a balanced combination of accuracy, durability, and accessory flexibility.

Quick Glance:

Caliber: 223 Wylde
Platform: AR-15
Barrel Length: 18 inches
Barrel Material: 4150 Chrome Moly Steel
Barrel Profile: HBAR
Barrel Finish: Parkerized
Twist Rate: 1:8 Twist
Gas System: Mid Length
Handguard Length: 15 inches
Handguard Type: Lightweight Free-Float M-LOK
Upper Receiver: Forged 7075-T6 Mil-Spec AR-15 Upper
Gas Block: .750" Low Profile Nitride
Muzzle Threads: 1/2x28
Muzzle Device: A2 Flash Hider with Crush Washer
Ammunition Compatibility: .223 Remington and 5.56 NATO
Headspace Checked: Yes – Manson GO and NO-GO Gauges
Assembly: Fully Assembled Upper Receiver Assembly

Full Details:

Upper Receiver:
AR-15 Mil-Spec forged aluminum upper receiver with forward assist and dust cover assembly installed. Forged from durable 7075-T6 aluminum and protected by a matte black MIL-A-8625 Type III, Class 2 hard coat anodized finish. The 7075-T6 construction provides greater strength than commonly used 6061 billet aluminum.

Barrel:
18" 223 Wylde barrel manufactured from durable 4150 chrome moly steel with an HBAR profile, Parkerized finish, and 1:8 twist rate. Features 1/2x28 muzzle threads, a standard AR-15 barrel extension with M4 feed ramps, and is professionally headspaced using Manson GO and NO-GO gauges. The 223 Wylde chamber safely accommodates both .223 Remington and 5.56 NATO ammunition.

Handguard:
Premium lightweight 15" extended rifle-length narrow-profile AR-15 free-float M-LOK handguard. M-LOK slots along the 3, 6, and 9 o'clock positions allow easy attachment of compatible accessories, including bipods, lights, grips, lasers, sling mounts, and rail sections. Machined from 6061 aircraft-grade aluminum with a matte black MIL-A-8625 Type III, Class 2 hard coat anodized finish.

Gas System:
Mid-length gas system paired with a .750" low-profile gas block featuring a durable nitride finish.

Muzzle Device:
A2 flash hider installed with a crush washer.

Headspace Checked:
The barrel is professionally headspaced using Manson GO and NO-GO gauges to help verify proper chamber dimensions and dependable operation.

Ready to Install:
This upper arrives fully assembled and is compatible with standard Mil-Spec dimension AR-15 lower receivers. A bolt carrier group and charging handle are not included and must be purchased separately unless added through available product options.

Important:
This product is not a firearm and will be shipped directly to you. No FFL transfer is required.

Ballistic Barn AR-15 uppers are American made and machined by manufacturers specializing in Mil-Spec AR-15 components. Every barrel is professionally headspaced using Manson GO and NO-GO gauges to help ensure dependable function and outstanding accuracy.