Magpul ACS Carbine Stock, Mil-Spec, Gray

The Magpul ACS (Adaptable Carbine/Storage) Mil‑Spec carbine stock is a drop‑in replacement designed for AR‑15/M4 carbines that use mil‑spec receiver extension tubes. It provides collapsible, 6‑position adjustability and integrated storage features for accessories and batteries. The stock incorporates an anti‑snag release latch and a supplemental friction lock system to minimize excessive movement during use. A 0.30″ thick rubber butt‑pad helps maintain positive shoulder purchase with or without body armor or modular gear.

Key Specifications

• The stock is supplied with No receiver tube included.
• The unit offers 6 adjustment positions for length of pull.
• The construction material is Polymer.
• The length of pull adjusts from 11.60″–14.90″.
• Designed to fit AR-15 platform rifles.
• The finish/color is Gray.
• The adjustment method is Collapsible.
• The model designation is ACS.
• The butt‑pad thickness is 0.30 inch rubber.
• Includes dual rear‑accessible water‑resistant battery tubes and an integral butt storage compartment.

The ACS combines ergonomic design and practical storage in a compact, user‑focused package suitable for a wide range of AR‑15 setups. Its collapsible adjustability and stability features make it a solid choice for shooters who value straightforward, durable components that integrate cleanly with Mil‑Spec receiver extensions.