Magpul ACS-L Complete Stock Kit ODG

$115.95

This kit bundles the genuine Magpul ACS-L stock in OD Green with a complete mil-spec carbine buffer tube assembly for a storage-equipped, adjustable-cheek-weld AR-15/M16 setup in one order.

Magpul ACS-L Complete Stock Kit, OD Green

This kit pairs the genuine Magpul ACS-L stock in OD Green with a complete mil-spec carbine buffer tube assembly, giving you an enclosed-storage, adjustable-cheek-weld stock setup that mounts in one order. The ACS-L sheds weight versus the full ACS while keeping its friction-lock stability and ambidextrous QD sling sockets.

Included in This Combo

  • Magpul ACS-L Carbine Mil-Spec Stock — Olive Drab OD Green (MAG378ODG)
  • Mil-spec carbine receiver extension (6-position buffer tube)
  • Carbine buffer
  • Action/recoil (buffer) spring
  • Castle nut
  • Receiver end plate

ACS-L Stock Specs

  • Slim-profile drop-in replacement for AR-15/M16 carbines on mil-spec receiver extensions
  • Enclosed butt storage compartment (battery tubes removed to save weight vs. full ACS)
  • Free-floating, independently adjustable cheek piece
  • Supplemental friction lock minimizes stock wobble on tube
  • Ambidextrous QD sling sockets
  • Compatible with mil-spec carbine receiver tubes (1.148″ diameter)
  • Made in the USA

WARNING (Prop 65): This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.p65warnings.ca.gov.

Weight 2 lbs

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Q: Do I need anything else to install this stock? A: Only a lower receiver. The combo already covers the ACS-L stock and the full buffer tube assembly — receiver extension, buffer, recoil spring, castle nut, and end plate — so the whole stock setup is in one box.

Q: How does this differ from buying the ACS-L by itself? A: The standalone ACS-L (MAG378ODG) is the buttstock with no buffer tube, buffer, spring, castle nut, or end plate. Bundling it with the buffer tube assembly here means you finish the lower in a single purchase rather than ordering parts one at a time.

Q: Why choose the ACS-L over a simpler carbine stock? A: Storage and adjustability. You get an enclosed butt compartment for batteries or small gear plus a cheek piece that adjusts independently for a tuned cheek weld — features a basic carbine stock doesn’t offer. The “Light” version keeps those perks while trimming the weight of the full ACS.

Q: Will the OD Green match my other Magpul olive drab parts? A: Magpul runs a consistent OD Green across its current polymer line, so it pairs well with Magpul OD Green grips, handguards, and magazines. Olive drab differs a bit brand to brand, but Magpul-to-Magpul stays close.

Q: Is the tube the right fit, and does it work on a home-finished 80% lower? A: Yes. The receiver extension is mil-spec diameter (~1.148″), exactly what the ACS-L is made for, so they match in the box. It installs on any standard mil-spec AR-15/M16 lower, 80% lowers included — grab a castle nut wrench and a punch or armorer’s tool for the install. The ACS-L is made in the USA and ships fast from Daytona Tactical.