An ACS stock (Adaptable Carbine/Storage) is an adjustable carbine stock designed by Magpul for AR-15 and AR-10 rifles. It features a streamlined design, enhanced cheek weld, and dual storage compartments for batteries or small tools. The ACS stock works with mil-spec or commercial carbine buffer tubes, AR-15/AR-10 lower receivers, buffer assemblies, and standard carbine stocks. It’s ideal for shooters seeking improved comfort, storage, and adaptability in tactical, competition, or custom rifle builds.
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