MPN: M114UA0B / 2M114UA0B
Features:
- Pinned and welded PWS FSC (Flash Suppressing Compensator) to maintain legal 16″ barrel rifle requirements
- PWS MK114 Mod 2 Upper – combines the agility of the AR-15 with the reliability of the AK-47 into a sleek and efficient design
- 3 easy to adjust gas settings
- Continuous Picatinny top rail
- Free Float M-LOK system w/ PicMod Technology in MOD 2 models – The new technology allows you to mount M-LOK attachments anywhere on your handguard and mount Picatinny accessories directly to the recessed Picatinny rail section at the end of the handguard
- Light-weight forged PWS MK114 MOD 2 Upper – No forward assist and material removed from less structurally important location for weight reduction
- Increased carrier mass to extend dwell time and delay unlock
- Lithium Embedded Salt Nitro-Carburized (FNC LIFE HD) coated barrel and bolt carrier for durability, corrosion resistance, and reduced friction
Specifications:
- Caliber: 5.56 NATO / .223 Rem.
- Chamber: .223 Wylde
- Finish: Type III Class 2 Hardcoat Anodized Finish
- Upper Receiver:
- MK1 MOD 1-M: Forged Flat Top Upper – Made from 7075-T6 Aluminum
- MK1 MOD 2-M: Forged Lightweight Flat Top Upper (No forward assist) – Made from 7075-T6 Aluminum
- Handguard:
- MK1 MOD 1-M: 13.6-inch M-LOK Rail System – Made From 6061-T6 Aluminum
- MK1 MOD 2-M: 13.6-inch M-LOK Rail System with PicMod Technology – Made From 6061-T6 Aluminum
- M4 Feed Ramps: Yes
- Muzzle Device: PWS FSC556 Flash Suppressing Compensator
- Barrel: 14.5” 1:8 Twist Modify Low-Stress profile .223 Wylde 41V50 CMV Barrel with FN HD Life Treatment
- Muzzle Thread Pattern: 1/2″-28
- Gas Block: PWS Long Stroke Piston System – 3-Position Adjustable Gas Block
- Gas Length: Mid-Length
- Bolt Carrier Group: PWS Long Stroke Piston Bolt Carrier Group
- Charging Handle: Radian Raptor-LT Ambi Charging Handle
- Weight:
- MK1 MOD 1-M: ~4 lbs. 8 oz.
- MK1 MOD 2-M: ~4 lbs. 4 oz.
- Overall Length: ~23.5″
Compatibility:
- AR-15 lower receivers
Includes:
- 1x PWS piston upper with .223 Wylde Barrel
- 1x PWS Rifle Service Tool
Details:
If you’re ready to try a piston AR upper and you want a compact weapon without having to do all of the hoop-jumping associated with short-barreled rifles, the Primary Weapons Systems MK114 Mod 2 Upper is for you. The PWS MK114 is built to respect the M4-type upper pattern, and is field proven to be lethal at 500 meters with a number of different types of ammunition.









