Magpul ACS-L Carbine Stock - MIL-SPEC - Flat Dark Earth

Manufactured by Magpul Industries
Manufactured by Magpul Industries
12 Reviews

In Stock

NOTE: Limit 5 per household. Quantities exceeding 5 will not allow checkout.

Standard orders will ship out within 1 business day or less. FFL orders will ship within 3 business days as long as we have the information for the transfer destination.



Magpul continues to grow and develop based on innovation, simplicity, and efficiency. At Magpul, mission driven requirements inform their product design, materials, and manufacturing, focusing on efficiency without sacrificing quality or performance.

The Adaptable Carbine Stock - Light is a drop-in replacement buttstock for AR-15/M4 carbines with MIL-SPEC receiver extensions. This streamlined version of the ACS removes the battery tubes for a slimmer, lighter package yet retains the center storage compartment and cheek weld.

NOTE: Friction lock performance may vary depending on the host receiver extension dimensional tolerances.

  • MIL-SPEC carbine receiver extension compatible
  • Sloping cheek weld
  • Storage compartment
  • Friction lock minimizes wobble
  • Shielded release latch
  • Premium chrome silicon lock spring
  • Replaceable 0.30" rubber buttpad
  • Included reversible sling mount kit
  • Rear/bottom 1" sling loop
  • Length: 8”
  • Width: 2.2”
  • Length of pull adjustment range: 3.3”
  • Collapsed length of pull: ~11.6”
  • Extended length of pull: ~14.9”
  • Weight: 12.5 oz
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Manufacturer.Magpul Industries
Sling MountMultiple - See Description
StorageInternal Storage
Weight12.48 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Ratings & Reviews

12 reviews

  • 3 stars
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  • 1 star
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Magpul ACS-L Stock Milspec (FDE)


Always a customer great service and speedy delivery!

Magpul ACS-L Stock Milspec (FDE)


First Magpul product and like it a lot. Much, much better than the standard stock that came on my M&P 15. At first a little loose on a BCM mil spec extension tube but tightened up with the friction lock engaged.

Magpul acs -l stock


Fit great, feels great, and looks great!

Quality Product and Service


I am a regular customer and have never been disappointed with the merchandise nor the service. I am building my AR-!5 and have ordered everything from Primary Arms.

Perfect stock!


I love the ACS but never really used the battery tubes. The ACS-L makes it perfect. Fit is tight even without use of the secondary lock. Very tight and nice fit. Love it!

Primary Arm's Service


I purchase a lot of Parts from a lot of vendors, but I must say that Primary Arm's win's hands down for their service and quick shipping.

Mag Pul ACS-L


Just got my recent order in today at work! Wow!!! once again PA blows my mind just when I think they couldn't be more awesome. I will always come here first. The quality of the products and speed of service is really above all else...and they treat there customers so great!! I share a lot of posts and even share deal you have on my own through FB...I hope everyone else will to to keep this great company going strong!!!!

Magpul ACS-L Stock


The ACS-L Stock in lightweight and functioned well on my FDE build. Looks great too!

Great Stock, but...


The QD cup that it comes with was meant for the full size ACS with the side battery tubes. If you don't want your face cut up by the QD cup or your sling when shooting, then you will have to order the smaller QD cup, the Type 2 sling mount kit.

magpul ACS-L


This magpul stock is awesome, they reduced some of the bulk and weight by ditching the storage cylinders. Fit is nice and tight with the friction lock, very solid, no wiggle. And Primary Arms shipped very fast, ordered Friday eve and recieved Monday afternoon!!!

ACS-L Stock


Good quality. Easy to install and feels much better than the Blackhawk I was using. Friction lock works well.

Excellent upgrade, nice cheek weld, added Length of pull

by -

This is my favorite stock for AR builds. It's got the nice cheek weld like the ACS but the "L" version is lighter and less expensive, and I don't put batteries in tubes in my stock anyway. Has the locking lever which eliminates the rattle, also increases length of pull, and my Mil-Spec stock was too short! Small compartment where you can add battery for lighted reticles, small lens cloth, etc