Elevate your AR-15 platform with the Primary Weapons Systems MK114 Mod1-M 14.5" .223 Wylde Complete Upper Receiver, a like-new, high-performance upper ready for installation. This complete upper receiver is perfect for enthusiasts, competitive shooters, and tactical professionals seeking exceptional accuracy and reliability. Built with Primary Weapons Systems’ innovative long-stroke piston system, this upper delivers cleaner operation, reduced recoil, and increased durability.
Specifications:
- Barrel Length: 14.5 inches
- Chamber: .223 Wylde (compatible with both 5.56 NATO and .223 Remington)
- Barrel Profile: Lightweight, precision machined for durability and accuracy
- Barrel Material: 4150 Chrome Moly Vanadium Steel, Nitride-treated for corrosion resistance
- Gas System: PWS Long-Stroke Piston System for reliable cycling and cleaner operation
- Handguard: 13.5" M-LOK compatible free-floating handguard for modular accessory mounting
- Upper Receiver: Forged 7075-T6 aluminum, MIL-STD-1913 Picatinny rail for optics and accessories
- Bolt Carrier Group (BCG): Nickel Boron (NiB) coated for smoother cycling and ease of maintenance
- Weight: Approx. 6 lbs (complete upper receiver)
- Finish: Matte black anodized
This upper receiver is virtually brand new, still in its original packaging, and offers a perfect solution for those looking to upgrade or complete their AR-15 build. Whether you're at the range or in the field, the MK114 Mod1-M provides the precision and reliability you demand. Ready to install, it’s an excellent choice for any serious shooter looking for a premium upper at an exceptional value.
| Brand | Primary Weapons Systems |
| Manufacturer Part # | M114UA01-2F-NC |
| Barrel Length | 14.5" |
| Caliber | .223 Wylde |