--- title: "Panzer AR57 16\" Complete Upper 50rd" description: "Panzer Arms 5.7x28 upper with 16 inch barrel and 50rd top-feed magazine. Converts an AR-15 lower into a low-recoil, high-capacity 5.7 platform." canonical_url: "https://www.kygunco.com/product/ar57-ult-0116-ult-5.7x28-16-upper-w-50rd-mag" meta: author: KYGUNCO "og:description": "Panzer Arms 5.7x28 upper with 16 inch barrel and 50rd top-feed magazine. Converts an AR-15 lower into a low-recoil, high-capacity 5.7 platform." "og:image": "https://cdn.kygunco.com/assets/products/247148/thumbnail.jpg?v=1713457269" "og:image:height": "500" "og:image:width": "500" "og:title": "Panzer AR57 16\" Complete Upper 50rd" --- > 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) / PNZ-ULT-0116 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/247148/main.jpg?v=1713457269) For illustration purposes only, this image may not be an exact representation of the product. # Panzer Arms AR57 ULT 5.7x28 16" Complete Upper with 50rd Magazine The Panzer Arms AR57 ULT 16 inch Complete Upper installs on a standard AR style lower to create a full length 5.7x28 rifle setup. It is supplied with the bolt carrier group and a 50rd top feed magazine, using downward ejection for clear operation. The 16 inch barrel provides a balanced option for range use or general 5.7 builds. 5.0 ** ** ** ** ** [2 reviews](#reviews) $649.99 ** 5 interest-free payments of **$130** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$116.04**/month 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 # 247148 Style PNZ-ULT-0116 UPC 051497297985 Condition New Manufacturer [Panzer Arms](https://www.kygunco.com/brand/panzer-arms) Round Capacity 50 Caliber 5.7x28mm Shop with KYGUNCO for the best selection, competitive pricing, and exceptional customer service. Experience the difference that comes with buying from a trusted outdoor retailer with over 20 years of experience in the industry. - Caliber/Gauge 5.7x28 - Barrel Length 16" - Barrel Twist 1:9 - Barrel Bore Type Fully Rifled - Firearm Fit AR-15 ** 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). 5.0 ** ** ** ** ** 2 reviews ** ** ** ** ** 2 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Reviews ** Glenn E Montevallo, AL Small bullet, but an amazing additional use for my AR-15 lower. My wife can shoot this thing all day with the recoil of a 22 LR. 1/21/2025 ** ** ** ** ** ** Verified Customer The 5.7 upper is awesome, works great. Fun to shoot, all variants of the pS90 mags work. Everyone should have one of these. Get one NOW!!! 1/16/2025 ** ** ** ** ** ## More from Panzer Arms ```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/ar57-ult-0116-ult-5.7x28-16-upper-w-50rd-mag#webpage","@type":"WebPage","description":"Panzer Arms 5.7x28 upper with 16 inch barrel and 50rd top-feed magazine. 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