--- title: "PRIMARY WEAPONS SYSTEMS MK116 Pro Upper 223 Wylde/5.56 16.1\" Black" canonical_url: "https://www.kygunco.com/product/pws-19-pm116ua0b-mk116-pro-upper-223-wylde-5.56-16.1-black" meta: author: KYGUNCO "og:image": "https://cdn.kygunco.com/assets/products/157745/thumbnail.jpg?v=1713445841" "og:image:height": "500" "og:image:width": "500" "og:title": "PRIMARY WEAPONS SYSTEMS MK116 Pro Upper 223 Wylde/5.56 16.1\" Black" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Gun Parts](https://www.kygunco.com/category/shooting/gun-parts) / [Handgun & Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts) / [Rifle Parts](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts) / [Upper Receivers](https://www.kygunco.com/category/shooting/gun-parts/handgun-and-rifle-parts/rifle-parts/upper-receivers) / PRM-19-PM116UA0B ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/157745/main.jpg?v=1713445841) For illustration purposes only, this image may not be an exact representation of the product. # PRIMARY WEAPONS SYSTEMS MK116 Pro Upper 223 Wylde/5.56 16.1" Black See Price In Cart ** 5 interest-free payments of **$115.60** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) Pay over time with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Handled by our expert shippers in Bardstown, KY. Item # 157745 Style PRM-19-PM116UA0B UPC 811154030955 Condition New Manufacturer [Primary Weapons Systems](https://www.kygunco.com/brand/primary-weapons-systems) Weight 4 lb The PWS MK1 PRO line features the tried and true PWS long stroke piston system. This line is perfect for shooters looking for a cost-effective piston system firearm without sacrificing the high-quality standards PWS has been known for over a decade. Featuring a 3-setting adjustable gas system for users with suppressors, free-float MLOK handguard, Radian Raptor charging handle, extruded upper receiver that integrates an extremely solid handguard attachment system, the MK1 PRO line has an assortment of features ideal for shooters of all levels. Available as a complete upper or complete firearm (both pistol and rifle configurations). As with all PWS complete upper receivers, they will fit seamlessly to any AR15 lower receiver with no need for add accessories. The PRO line is the best value on the market when it comes to piston driven operating systems, including high-end features and custom components. ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## More from Primary Weapons Systems ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/pws-19-pm116ua0b-mk116-pro-upper-223-wylde-5.56-16.1-black#webpage","@type":"WebPage","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"PRIMARY WEAPONS SYSTEMS MK116 Pro Upper 223 Wylde/5.56 16.1\" 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