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Questions & Answers
will this stock work on my AR10? Expert Answer

It should fit as long as your rifle uses a carbine style buffer tube.

by Jonathan D., Gear Expert, October 10, 2018
Will this fit on a PWS Enhanced Buffer tube? Expert Answer

Yes, the Magpul ACS Mil-Spec Carbine Stock should fit the PWS Enahnced Buffer Tube since it has Mil-Spec dimensions.

by Hunter, Gear Expert, January 12, 2022
Customer Reviews
Helpful Positive Review Magpul never disappoints by David James, October 28, 2019
Bought this stock and loved it from the get go. Installed it and had a perfect fit with my mil spec buffer tube. Literally, no play at all. Compartments to store condoms and viagra is a plus. Cant compare this stock to others because I only have magp...
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12/12 found this helpful
Helpful Positive Review Great SPR stock by Hunter, April 22, 2018
This Magpul ACS stock has plenty of weight to balance 18-20" AR 15s. The battery compartment and storage compartment can be stuffed full with batteries and cleaning equipment. The locking feature of this stock prevents the stock from having any play.
2/3 found this helpful
Helpful Positive Review Like the stock by Bryan Beane, May 15, 2016
The stock that came on both my ar15 and ar10 were to small to me. So I replaced all three. Very happy with my choice. The only thing I don't like is being forced to write more than is what is necessary .
1/1 found this helpful
Helpful Positive Review Very Stable and Sturdy by Noah Olson, Verified Owner, July 15, 2018
I would say that this stock has been the most comfortable I have used. And the storage compartments are nice touch! The lever mechanic is great for positioning it at your adjusted length. And the friction lock is a wonderful feature. It really gives ...
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1/3 found this helpful
Helpful Positive Review Good stuff by Daniel, March 19, 2018
I have Magpul furniture on all 5 of my ARs, and on my AK. Very happy with there products. A great way to upgrade your firearms. Would recommend their products to anyone. I'm impressed with their fit and finish. I also like their magazines.
1/1 found this helpful
Helpful Positive Review One of my favorite buttocks stocks by Davey, January 5, 2019
This stock fits tight, feels good, isn't too big and isn't too small, light,, its just right like the little bear said. Honestly, I really like this one, Small storage compartment, light, sturdy, tight, feels good on the cheek.
3/3 found this helpful
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Product Info for Magpul ACS Mil-Spec Carbine Stock

Upgrading your rifle stock has never been easier. The Magpul ACS Mil-Spec Carbine Stock is a simple drop-in replacement buttstock for AR15/M4 carbine rifles that utilize mil-spec sized receiver extension tubes. Stow away batteries and other accessories in these AR15 Stocks by Magpul Industries that contain a rear accessible dual water-resistant battery storage as well as an integrated storage option in the butt of the stock. The anti-snag release latch ensures you won't accidentally activate this Magpul ACS Carbine Rifle Stock while a supplemental friction lock system keeps it stable and steady. Throw the 0.3in rubber buttpad into your shoulder for increased accuracy down range. This stock has a sloping cheek weld that allows for comfortable shooting while at the range. Pick up your Magpul Adaptable Carbine/Storage Stock and get versatile storage options and a reliable buttstock for your favorite rifle.image

Specifications for Magpul ACS Mil-Spec Carbine Stock:

Manufacturer: Magpul Industries
Gun Model: AR-15, M16
Gun Type: Carbine
Condition: New
Gun Make: AR Platform

Features of Magpul Adaptable Carbine/Storage Stock, 55-RSC-MACSMS:

  • Mounts on mil-spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others (please see the note below)
  • Sloping cheek weld provides a wide contact surface for user comfort
  • Two water-resistant battery storage tubes located on the left and right sides of the stock
  • Each tube will store up to three CR123 lithium or two AA batteries
  • Tubes are accessible from the rear via a tethered, hand-removable rubber plug
  • Storage compartment in tail of stock with positive latching access door on right hand side
  • Supplemental friction lock minimizes accuracy robbing wobble*
  • Shielded release latch prevents snagging and accidental operation
  • Premium chrome-silicon lock spring provides positive locking and long service life
  • Replaceable 0.30" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
  • Compatible with Magpul ASAP®, ASAP® QD, and other receiver-mount sling attachments
  • Sling Mounts
  • Mid - Included reversible Sling Mount Kit - TYPE 3 fits up to 1.5" push-button swivels (swivel not included)
  • Rear/Bottom - 1.00" sling loop

Package Contents:

  • Magpul Adaptable Carbine/Storage Stock, 55-RSC-MACSMS

Magpul ACS Mil-Spec Carbine Stock Orderable Models

List of Orderable Models

Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Gray, MPIMAG370GRY , MPN: MAG370-GRY , UPC: 873750008950 , Code: 55-BSC-MACSMS-MAG370GRY
Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK , MPN: MAG370-BLK , UPC: 873750001005 , Code: 55-BSC-MACSMS-MAG370BLK
Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, OD Green, MPIMAG370OD , MPN: MAG370-OD , UPC: 873750001029 , Code: 55-BSC-MACSMS-MAG370OD
Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Flat Dark Earth, MPIMAG370FDE , MPN: MAG370-FDE , UPC: 873750001012 , Code: 55-BSC-MACSMS-MAG370FDE

Magpul ACS Mil-Spec Carbine Stock Unavailable & Discontinued Models

List of Unorderable Models

USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK, EDEMO5, Used, Condition Fair , MPN: MAG370-BLK-EDEMO5 , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO5
USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK, EDEMO8, Used, Condition Fair , MPN: MAG370-BLK-EDEMO8 , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO8
USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK, EDEMO13, Used, Condition Fair , MPN: MAG370-BLK-EDEMO13 , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO13
USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK, EDEMO15, Condition Parts Only/Salvage, Defective , MPN: MAG370-BLK-EDEMO15 , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO-DF-F
USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Flat Dark Earth, MPIMAG370FDE, EDEMO3, Used, Condition Like New , MPN: MAG370-FDE-EDEMO3 , Code: 55-BSC-MACSMS-MAG370FDE-EDEMO3
USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, OD Green, MPIMAG370OD, EDEMO1, Used, Condition Like New , MPN: MAG370-OD-EDEMO1 , Code: 55-BSC-MACSMS-MAG370OD-EDEMO1
USED, Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK , MPN: MAG370-BLK-EDEMO , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO-WP-F
USED, Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK , MPN: MAG370-BLK-EDEMO , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO-IN-D
USED, Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK , MPN: MAG370-BLK-EDEMO , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO-SC-C
Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Foliage Green, MPIMAG370FOL , MPN: MAG370-FOL , Code: 55-BSC-MACSMS-MAG370FOL
USED Magpul Industries ACS Rifle Stock w/Storage, Fits AR-15/M-16, Mil-Spec, Black, MPIMAG370BLK, EDEMO18, Used, Condition Fair , MPN: MAG370-BLK-EDEMO18 , Code: 55-BSC-MACSMS-MAG370BLK-EDEMO18
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