The PWS MK114 MOD 1-M Upr 14.5" 223 Wylde delivers a precise AR-15 platform upgrade with PWSs renowned Long Stroke Piston System and a three-setting adjustable gas regulator for clean, consistent operation across a wide range of ammunition and environmental conditions, while the mid-length gas system enhances smooth recoil and reliability. Chambered in .223 Wylde, the 14.5" barrel features a 1:8 twist to stabilize a broad spectrum of projectiles, enabling accurate performance from standard varmint rounds to heavier target loads, with a muzzle velocity around 2921 fps and no muzzle device included to allow user customization. The upper continues PWS specifications with a proprietary T6 7075 forged anodized upper and a 13.624" M-LOK handguard (1.7" width, 2.25" height) that provides ample real estate for accessory placement and grip ergonomics. The system is paired with a Radian Raptor ambidextrous charging handle for rapid, intuitive operation, and the overall finish is a durable black anodized look designed to withstand tough field conditions. This complete upper receiver assembly supports AR-15 compatibility and is identified as MOD 1, M-LOK capable, offering dependable modular performance for hunting, target shooting, and training applications.