PWS MK114 Mod 2-M | .223 Wylde | 14.5 in | 2M114UA01-2F-NC

The Primary Weapons Systems MK114 Mod 2-M is a complete AR-15 upper built around a 14.5″ anodized 416R steel barrel chambered in .223 Wylde. The upper uses the PWS long-stroke piston architecture and includes a 3-setting adjustable gas system for tuning across ammunition types and when using a suppressor. The design pairs a precision-focused barrel with modular handguard features intended for accessory mounting and user adaptability.

Product Specifications

• The manufacturer is Primary Weapons Systems.
• The model is MK114 Mod 2-M.
• The manufacturer part number is 2M114UA01-2F-NC.
• The cartridge/chambering is .223 Wylde.
• The barrel measures 14.5″ in length.
• The barrel is made from 416R Steel.
• The barrel finish is Anodized.
• The rate of twist is 1:8″.
• The handguard uses PicLok (Picatinny + M-LOK) technology for accessory mounting.
• The upper includes a Radian Raptor Ambidextrous Charging Handle.
• The gas system is a 3-setting adjustable design for tuning and suppressor use.
• The muzzle is threaded with a 1/2-28 pattern.
• The fitment is for AR-15 platforms.
• The listed weight is 4.7 (units not specified in source data).
• The UPC is 811154033222.

This MK114 Mod 2-M upper brings piston reliability together with a precision-oriented .223 Wylde barrel and adjustable gas controls, making it well suited to precision/long-range practice and suppressed-range use. The PicLok handguard and included ambidextrous charging handle support a wide range of accessory configurations without sacrificing ergonomics.