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Home / Gun Parts / Primary Weapons Systems / PWS AR-15 MK114 MOD 1-M Complete Upper Receiver 223 Wylde 14.5" Barrel with Thread Protector
▼ 11% below avg
PWS AR-15 MK114 MOD 1-M Complete Upper Receiver 223 Wylde 14.5" Barrel with Thread Protector

PWS AR-15 MK114 MOD 1-M Complete Upper Receiver 223 Wylde 14.5" Barrel with Thread Protector

Lowest Listed Price
$1,016.2
MSRP
$1,299.95
Savings
22% off
Retailers Reporting In Stock
7 Stores
Updated
Sep 2, 2026
Compare Deals from 13 Retailers
Sorted by lowest price
E-Commerce Arms
E-Commerce Arms Best
● In Stock
$1,016.2
BattleHawk Armory
BattleHawk Armory
● Stock Unknown
$1,049.95
Shooting Surplus
Shooting Surplus
● Stock Unknown
$1,100.44
Red Team Armory
Red Team Armory
● In Stock
$1,128.8
Brownells
Brownells
● In Stock
$1,129.95
OpticsPlanet
OpticsPlanet
● In Stock
$1,129.95
Palmetto State Armory
Palmetto State Armory
● Stock Unknown
$1,180.99
701
701 Arms
● In Stock
$1,209.95
Page 1 of 2
Barrel Length: 14.5";Gas System Length: Mid-Length"
Barrel Twist Rate: 1:8
Caliber: .223 Wylde
Charging Handle: Radian Raptor Ambidextrous Charging Handle
Handguard: PWS M-Lok 13.624 Handguard (1.7" width, 2.25" height)"
Muzzle Device: No muzzle device included. All NFA rules apply.
Operating System: PWS Long Stroke Piston System, 3 setting Adjustable Gas Regulator
Upper Receiver: PWS Proprietary Piston Upper, T6 7075 Forged, Anodized

Specifications

Caliber
223 Wylde
Brand
Primary Weapons Systems
Model
MK114
Series
Mod 1-M Upper
MPN
MK1-M1U-223-14-NC
UPC
811154033482

Description

The MK114 MOD 1-M Upper is equipped with the renowned PWS PWS long-stroke piston system, maintaining the reliability that PWS owners have come to trust. This line features a free-float MLOK handguard, forward assist controls, and a design closer to mil-spec standards, catering to civilians and Law Enforcement alike. With a fully forged upper receiver, the MK1 MOD 1-M offers a straightforward solution for those seeking a high-value option that delivers unwavering performance in any situation. FeaturesPWS Long Stroke Piston System: Renowned for reliability and reduced fouling, with adjustable gas settings for optimal performance.Forward Assist Integration: Essential for reliable chambering of rounds, particularly in adverse conditions, ensuring seamless operation and increased reliability for shooters.Suppressor Optimized: Provides enhanced suppressor performance by minimizing back pressure, reducing gas blowback, and optimizing gas flow for a cleaner and more comfortable shooting exp...

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