--- title: "AERO PRECISION M4E1 Pro Stripped Lower Receiver 223/5.56 Black" canonical_url: "https://www.kygunco.com/product/aero-precision-m4e1-pro-stripped-lower-receiver-223-5.56-black" meta: author: KYGUNCO "og:image": "https://cdn.kygunco.com/assets/products/278620/thumbnail.jpg?v=1748023635" "og:image:height": "500" "og:image:width": "500" "og:title": "AERO PRECISION M4E1 Pro Stripped Lower Receiver 223/5.56 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) / RPR-APAR600030AC ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/278620/main.jpg?v=1748023635) For illustration purposes only, this image may not be an exact representation of the product. # AERO PRECISION M4E1 Pro Stripped Lower Receiver 223/5.56 Black See Price In Cart ** 5 interest-free payments of **$55.31** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Fulfilled by a partner warehouse. ** Partner Fulfilled ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Item # 278620 Style RPR-APAR600030AC UPC 840014623242 Condition New Manufacturer [Aero Precision](https://www.kygunco.com/brand/aero-precision) Model M4E1 Pro Caliber 5.56 NATO, 223 Rem Weight 3 lb Action Semi-Auto The M4E1 PRO Lower Receiver seamlessly integrates ambidextrous controls into the M4E1 Lower that allows for the shooter to easily operate the bolt catch, magazine release, and safety without modifying their dominant firing hand. All proprietary componentry of this lower receiver comes preinstalled and is compatible with mil spec parts and components giving the builder the freedom to configure as they see fit. ** 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 ## Don't Forget Your Ammo ```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/aero-precision-m4e1-pro-stripped-lower-receiver-223-5.56-black#webpage","@type":"WebPage","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"AERO PRECISION M4E1 Pro Stripped Lower Receiver 223/5.56 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