Magpul ACS-L Carbine Stock OD Green for AR-15/M16/M4 - Mil-Spec Tube Compatible (Tube Not Included)

The Magpul ACS-L carbine stock is a purpose-built, lightweight receiver extension designed for AR-15, M16, and M4 platforms running a mil-spec buffer tube. If you're building a carbine that needs to stay nimble without sacrificing control, the ACS-L strips away weight and side storage to give you a slimmer profile while keeping the ergonomics that made Magpul's ACS line popular on tactical and hunting rigs alike. This is the stock for shooters who value compact handling over extra compartments.

The ACS-L retains the wide, sloping cheekweld surface that locks you into a consistent sight picture, whether you're running a red dot or a scope. The tail storage compartment stays intact—handy for a spare battery, cleaning patch, or round count. Magpul's friction locking system grips the buffer tube securely once you've set your length of pull, so there's no rattle or creep during shooting. The reversible QD socket accepts standard pushbutton sling swivels, and a 1-inch sling loop is molded into the toe, giving you two ways to rig the stock for your carry preference.

The rubber recoil pad is user-replaceable, so as it wears or if you want a different thickness, Magpul Tactical Recoil Pads are available separately. Keep in mind this stock requires a mil-spec carbine buffer tube (1.14" O.D.)—the tube, buffer, receiver extension nut, and action spring are not included, so factor those into your build if you're starting from scratch.

Available in OD Green, the ACS-L is a no-fuss, field-proven choice for hunters, sport shooters, and builders who need a dependable stock that won't slow you down.

Key Features

• Lightweight, slimmed-down design compared to the full ACS for improved maneuverability
• Wide, sloping cheekweld for consistent and comfortable sight picture
• Friction locking system prevents wobble and extension creep
• Reversible QD socket for standard pushbutton sling swivels
• 1-inch sling loop molded into toe for mounting flexibility
• Rear compartment for secure storage of small items
• Replaceable 0.3-inch rubber recoil pad
• Mil-spec tube compatible (1.14" O.D.)
• OD Green finish

Specifications

Frequently Asked Questions

What buffer tube does the ACS-L need?

The ACS-L is compatible with mil-spec carbine buffer tubes measuring 1.14 inches in outer diameter. The tube, carbine buffer, receiver extension nut, and action spring are not included with the stock and must be purchased separately.

Will this stock work on my AR-15?

Yes, the ACS-L fits AR-15, M16, and M4 platforms that use a standard mil-spec carbine buffer tube. As long as your upper and lower are built around that tube standard, the ACS-L will mount without issue.

Can I attach slings to the ACS-L?

The stock features a reversible QD (quick-detach) socket that accepts standard pushbutton sling swivels, and there is also a 1-inch sling loop molded into the toe of the stock, giving you two mounting options for how you want to rig your carbine.

Is the recoil pad replaceable?

Yes. The 0.3-inch rubber recoil pad can be swapped out with Magpul Tactical Recoil Pads (sold separately) if you want to change thickness or profile over time.