True North Concepts 4-Prong Flash Suppressor – KeyMo Compatible Engineered for hard use. Suppressor-Ready. Built to Perform. The True North Concepts 4-Prong Flash Suppressor (4PS) is designed for military, law enforcement, and shooters who require superior flash reduction and compatibility with the industries best suppressor QD system, Dead Air's KeyMo Attachment System. The 4PS works seamlessly with all Dead Air's KeyMo suppressors and HUB compatible suppressors when using Dead Air's KeyMo Adapter (DA428) or KeyMo "S" Mount (DA429), this includes silencers from SilencerCo, YHM, CGS, Griffen Armament and Energetic Armament to name just a few. Developed in collaboration with Dead Air Silencers to ensure every 4PS has the correct critical OEM dimensions, this KeyMo-compatible muzzle device minimizes visual signature, preserving night vision and reducing detection in critical situations. Features & Specifications: Superior Flash Suppression – 4-prong design reduces muzzle flash for improved concealment and operational effectiveness. KeyMo QD/HUB Compatible – Works with Dead Air KeyMo suppressors and HUB compatible suppressors with Dead Air's HUB adapter for quick and secure attachment. Built for Harsh Conditions – Black Nitride finish resists corrosion, wear, and extreme environments. Precision Fitment – ½-28 thread ensures secure installation on .223/5.56 platforms, including duty and defense rifles. Overall Length: 2.45” Adds Approximately: 1.82” to barrel length Made in the USA – Designed and manufactured for professionals who demand the best. ITAR Controlled. No Exports Performance You Can Trust Whether used alone for maximum flash suppression or paired with a KeyMo suppressor, the True North Concepts 4-Prong Flash Suppressor delivers concealment, durability, and reliability in any environment. When every shot matters, equip your rifle with a muzzle device that won’t fail you. Need a Shim Kit? Click Here