The Magpul ACS-L is a drop-in replacement buttstock for AR15 / M4 carbines that use mil-spec sized receiver extension tubes. Designed as a lighter, streamlined version of the ACS, it keeps the stable cheek weld and center storage compartment while removing the battery tubes for a slimmer profile.
Key Features
Center storage compartment for small essentials
Slimmed ACS-L design removes battery tubes for reduced bulk and weight
Drop-in fit for AR15 / M4 carbines using mil-spec receiver extension tubes
Durable polymer construction with a black finish for everyday use
Comfortable, consistent cheek weld geometry for better repeatability
Upgrade your AR15 or M4 with the Magpul ACS-L for a lighter, more streamlined build while keeping the key comfort and storage benefits.
