Magpul ACS-L Carbine AR-15 Stock - Mil-Spec - MAG378

ACS capability on a diet — the ACS-L keeps the locked-down weld and battery storage while shedding the bulk.

The Magpul ACS-L Carbine Stock (MAG378) — Adaptable Carbine/Storage, Light — streamlines the full ACS concept for shooters who want its wobble-resistant stability and onboard battery storage without the width and weight of the flagship. The friction-lock interface still clamps the stock firm against the receiver extension for a stable, repeatable cheek weld; the storage slims down to efficient battery tubes rather than full compartments.

The slimmer housing handles faster and clears kit more cleanly, while the rubber buttpad and reinforced polymer construction carry the usual Magpul guarantees. It is the pragmatic middle path of the stock line — most of the capability, noticeably less of the mass.

Why shooters choose the ACS-L

• Friction-lock stability — a firm, wobble-resistant weld
• Streamlined battery storage — essentials onboard, bulk offboard
• Slimmer, lighter housing — faster handling than the full ACS
• Rubber buttpad — positive shoulder contact
• Three finishes — Black, Flat Dark Earth, Olive Drab Green

Fit & installation

Fits Mil-Spec carbine receiver extensions — slide on, set length, engage the lock. Battery tubes load from the rear.

Specifications

• Model: MAG378
• Platform: AR15/M4
• Fit: Mil-Spec carbine receiver extension
• Storage: Battery storage tubes
• Finishes: Black, Flat Dark Earth, Olive Drab Green

The lighter way to lock down. Order the ACS-L today — in stock at Xtreme Tactical Gun Parts with free UK delivery.

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