--- title: "Dead Air Armament M18 Muzzle Device Shim Kit" description: "M18×1 shim kit for timing compatible muzzle devices. Includes 0.004\", 0.006\", and 0.060\" shims in three thickness options." canonical_url: "https://www.kygunco.com/product/dead-air-muzzle-device-shim-kit-m18" meta: author: KYGUNCO "og:description": "M18×1 shim kit for timing compatible muzzle devices. Includes 0.004\", 0.006\", and 0.060\" shims in three thickness options." "og:image": "https://cdn.kygunco.com/assets/products/250640/thumbnail.jpg?v=1756483641" "og:image:height": "500" "og:image:width": "500" "og:title": "Dead Air Armament M18 Muzzle Device Shim Kit" --- > 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) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Class III](https://www.kygunco.com/category/shooting/guns/class-iii) / [Suppressor Accessories](https://www.kygunco.com/category/shooting/guns/class-iii/suppressor-accessories) / DDR-DA004 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/250640/main.jpg?v=1756483641) For illustration purposes only, this image may not be an exact representation of the product. # DEAD AIR ARMAMENT Muzzle Device Shim Kit M18 The Dead Air Armament M18 Shim Kit helps precisely time muzzle devices on M18×1 threaded barrels. It includes 10 shims across three thicknesses: four 0.004" one-notch shims, five 0.006" two-notch shims, and one 0.060" unnotched shim for adjustment as needed. $9.20 Online In Store ** Flat Rate $13.94 for every 25 lbs. Shipping to HI & AK may incur additional fees. ** Ships To Your Home Fulfilled by a partner warehouse. ** Partner Fulfilled Item # 250640 Style DDR-DA004 UPC 810128161312 Condition New Manufacturer [Dead Air Armament](https://www.kygunco.com/brand/dead-air-armament) Weight 1 lb **Dead Air Shim Kit — M18×1** Precisely time M18×1 muzzle devices with a three-thickness shim set. Always place the thickest shim on the barrel shoulder first. - **One notch (Qty 4)** — 0.004" thick, \~36.6° rotation (\~1/10 turn) - **Two notches (Qty 5)** — 0.006" thick, \~54.9° rotation (\~1/7 turn) - **No notch (Qty 1)** — 0.060" thick, \~1.52 turns **Notes** - For M18×1 threaded barrels/muzzle devices - Combine shims as needed to fine-tune timing ** 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 Dead Air Armament ```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/dead-air-muzzle-device-shim-kit-m18#webpage","@type":"WebPage","description":"M18×1 shim kit for timing compatible muzzle devices. 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