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Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver MK1-M2U-223-16 Caliber: .223 Wylde, Barrel Length: 16 in, $100.00 Off w/ Free S&H

Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black 2M116UA01-1F
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
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Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black 2M116UA01-1F
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Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black 2M116UA01-1F
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
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Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
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Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
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Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16
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Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16

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Questions & Answers
I assume this pws upper comes with the BCG, correct? Expert Answer

Yes, this Primary Weapons Systems MK116 MOD 2-M 16in bbl Upper Receiver will include a BCG as well as a Radian Raptor Ambidextrous Charging Handle.

by Ethan, Gear Expert, November 2, 2022
Is this upper mil specification? Will it work on a standard mil specification lower? Expert Answer

Yes, the Primary Weapons Systems MK116 MOD 2-M 16in bbl Upper Receiver will fit to any Mil-spec AR15 lower receiver.

by Ethan, Gear Expert, October 21, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
PWS is the only manufacture that I'll happily spend $1k on for an AR platform. by Mo Guns, December 24, 2020
Simply fantastic weapons. I will trust my life to PWS system every time. Piston is amazing, soft shooting, simply amazing guns. MOD 2 is definitely worth it at the price. Better build overall and lighter.
5/5 found this helpful
Helpful Positive Review
Shoots great, loves good .223 by wmaguire, June 4, 2023
Just built a rifle with this upper last week. Took it to the range to try out a variety of 5.56 and .223. As advertised, the POI was identical between the two. The big surprise was accuracy. Recoil with the 5.56 was noticeably more, and the groups sp...
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3/3 found this helpful
Most Recent Reviews
primary weapons systems MK116 mod 2 by Robert Pina, Verified Owner, April 24, 2024
The MK 116 mod 2 , fit and finish look great, fits on my mill spec lower , could not find it anywhere cheaper than Optics planet with it great discounts !!!!!!
Most Recent Reviews
Incredible quality - obvious attention to detail by JM, Verified Owner, March 17, 2024
PWS needs no endorsement from me, but the quality out of the box is obvious. Wipe down the assembly oil and the quality of the anodizing and forging is obvious. Wanted something ideal for suppression that would be super reliable with minimal fuss and...
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Most Recent Reviews
Merry Xmas to me by Jesse, Verified Owner, December 21, 2023
Couldn't be happier with my purchase amazing craftsmanship light weight. Went weeks deciding between the Mod 1 and this one. In the end and with great discounts only found throught Optics Planet I went with this Mod 2. A little more but well worth it...
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Read All 5 Reviews
Caliber: .223 Wylde Barrel Length: 16 inGas System Length: Mid Length Barrel Twist Rate: 1-8 Threads per Inch: 5/8x24 Muzzle Device: FSC 556 Finish: Matte Color: Black Handguard Length: 15 inAdditional Features: 3-Setting Adjustable Gas System Condition: New

Code: 2D5-URC-RG29D-MK1-M2U-223-16

MPN: MK1-M2U-223-16

UPC: 811154033239

List: $1,399.95Save $100.00
$1,299.95

Product Info for Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver

The MK116 MOD 2-M Upper operates on the highly acclaimed PWS Long Stroke Piston System, renowned for its reliability and reduced fouling. The inclusion of a 3-setting Adjustable Gas System allows users to fine-tune gas flow, ensuring optimal performance in diverse shooting conditions as well as optimizing it for suppressor use. This innovative system not only enhances reliability but also provides adaptability to various ammunition types and environmental factors.image

WARNING: California`s Proposition 65

Specifications for Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver:

Manufacturer: Primary Weapons Systems
Caliber: .223 Wylde
Barrel Length: 16 in
Gas System Length: Mid Length
Barrel Twist Rate: 1-8
Threads per Inch: 5/8x24
Muzzle Device: FSC 556
Finish: Matte
Color: Black
Fabric/Material: 41V50 Chrome Moly Vanadium Steel
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 15 in
Additional Features: 3-Setting Adjustable Gas System
Condition: New
Bolt Carrier Group Included: MIL-SPEC
Magazine Included: No

Features of Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver:

  • PWS Long Stroke Piston System: Renowned for reliability and reduced fouling, with adjustable gas settings for optimal performance.
  • Suppressor Optimized: Provides enhanced suppressor performance by minimizing back pressure, reducing gas blowback, and optimizing gas flow for a cleaner and more comfortable shooting experience.
  • .223 Wylde Chambering: Meticulously designed for outstanding accuracy and reliability, accommodating both .223 Remington and 5.56mm NATO.
  • Lightweight Design: The MK116 upper weighs just 4.6 lbs, ensuring superior maneuverability without compromising performance.
  • Barrel: 16.1" .223 Wylde barrel with a 1:8 twist rate, delivering exceptional accuracy and versatility when firing both .223 Remington and 5.56mm NATO rounds.
  • PWS FRC 2-Port Compensator: A suppresor compatible compensator that expertly mitigates recoil, muzzle rise and is compatible with the Rearden Atlas suppressor mounting system.
  • Innovative PicLok Handguard: Combining both Picatinny and MLOK into one for mounting accessories, balancing ergonomics and functionality.
  • Radian Raptor Ambidextrous Charging Handle: Ensures smooth operation for both left and right-handed shooters.

Package Contents:

  • Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver

Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver Orderable Models

List of Orderable Models

  • Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, MK1-M2U-223-16 , MPN: MK1-M2U-223-16 , UPC: 811154033239 , Code: 2D5-URC-RG29D-MK1-M2U-223-16

Primary Weapons Systems MK116 MOD 2-M, .223, 16in Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .223 Wylde, 3-Setting Adjustable Gas System, FSC556 Compemsator, Black, 18-2M116UA0B , MPN: 18-2M116UA0B-DEMO , Code: 2D5-URC-RG29D-18-2M116UA0B-DEMO
  • Primary Weapons Systems MK116 MOD2-M Upper Receiver, 16in bbl, .300BLK Non Adjustable Gas System, Triad 30 Compensator, Black, 18-2M116UB0B , MPN: 18-2M116UB0B , UPC: 811154030184 , Code: 2D5-URC-RG29D-18-2M116UB0B
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