--- title: "Magpul Armorer's Wrench AR15/M4 Steel Tool" description: "Solid steel armorer's wrench for AR15, M4, and M16 platforms. Fits barrel nuts, castle nuts, receiver extensions, flash hiders, and 1/2\" torque wrenches." canonical_url: "https://www.kygunco.com/product/magpul-mag535-blk-armorers-wrench-ar15m4-black" meta: author: KYGUNCO "og:description": "Solid steel armorer's wrench for AR15, M4, and M16 platforms. Fits barrel nuts, castle nuts, receiver extensions, flash hiders, and 1/2\" torque wrenches." "og:image": "https://cdn.kygunco.com/assets/products/65153/thumbnail.jpg?v=1713457897" "og:image:height": "500" "og:image:width": "500" "og:title": "Magpul Armorer's Wrench AR15/M4 Steel Tool" --- > 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) / [Gun Tools](https://www.kygunco.com/category/shooting/gun-parts/gun-tools) / MGP-MAG535-BLK ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/65153/main.jpg?v=1713457897) For illustration purposes only, this image may not be an exact representation of the product. # MAGPUL Armorer's Wrench - AR15/M4 American-made AR15/M4 armorer's wrench made from solid steel for durability and a comfortable grip. It engages stock and pin-style barrel nuts, fits standard flash hiders, installs and removes receiver extensions and carbine castle nuts, and includes two hammer faces plus torque spec references and a bottle opener. 5.0 ** ** ** ** ** [2 reviews](#reviews) $57.99 ** 5 interest-free payments of **$11.60** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.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. Selling fast. Limited quantities available. Item # 65153 Style MGP-MAG535-BLK UPC 873750000268 Condition New Manufacturer [Magpul](https://www.kygunco.com/brand/magpul) Weight 1.5 lb ### Magpul Armorer's Wrench – AR15/M4 The Magpul Armorer's Wrench – AR15/M4 is an American-made, extremely durable, solid steel tool that's comfortable to grip. Engages both stock and pin-style barrel nuts. Fits standard sized flash hiders. Installs and removes rifle receiver extensions and carbine castle nuts, and has extended teeth for use with ASAP® plates. Includes two hammer faces. The Magpul Armorer's Wrench works with a 1/2" torque wrench, and relevant torque specifications are included on the tool for quick reference. Convenient Bottle Opener for refreshments after the build is complete (fits both Metric and SAE bottle caps). Made in the U.S.A. #### Features **RIFLE-LENGTH / ENTRY LENGTH RECEIVER EXTENTION WRENCH** American-made with US steel Heat-treated steel construction with manganese phosphate finish USGI torque spec references Bottle opener #### Specifications - **Platform** AR15, M4, M16 - **Weight** 1.1 lb. - **Other Specs** - Handle Thickness: 0.35 in. - Length, maximum: 11.7 in. - **COMPATIBILITY**: - USGI barrel nut wrench - Free-float tube barrel nut wrench - 1/2" torque wrench/breaker bar interface - Armorer's hammer - USGI castle nut wrench\*, usable with aftermarket end plates such as the ASAP® and ASAP-QD - 3/4" wrench for most flash hiders/muzzle brakes - \***NOTE**: Not compatible with larger diameter pistol-style receiver extension tubes ** 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 ** Paul Raleigh, NC Great product, I'm sure as I haven't received it yet. But I like Kygunco, fast shipping and great prices. 4/15/2025 ** ** ** ** ** ** Ben Luoma Gold Canyon, AZ I guess that there are two parts in this review; the product, and Kentucky Gun. First the product, MagPul’s Armorer’s Wrench is considered the best on the market by many AR builders/assemblers. I’m VERY happy with mine and that’s why I bought another as a Christmas gift for my son who’s in the Army. Second, kygunco; they had this wrench is stock when no one else did, their price was lower than any one else that I could find, and their customer service was amazingly good (prompt, friendly, professional, and efficient). I’ll be HAPPY to do business with them again, and highly recommend them to my friends. 11/28/2020 ** ** ** ** ** ## More from Magpul ```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/magpul-mag535-blk-armorers-wrench-ar15m4-black#webpage","@type":"WebPage","description":"Solid steel armorer's wrench for AR15, M4, and M16 platforms. 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