• Adams Arms **

  • AK-47 Parts and Accessories

  • Apex Machining Handguard

  • Apparel & Gift Certificates

  • AR10 & Variants Parts

  • AR15 Parts

  • Back Up Iron Sights BUIS

  • Battle Arms

  • Biometric Locks and Safes

  • Bipods - Quick Detach - Heavy Duty

  • CAA Command Arms Accessories EMA

  • cmmg

  • Complete AR-15 Upper Assemblies

  • Daniel Defense Inc.

  • Geissele SHIPS FREE

  • Eotech Holographic Sights **

  • FAB Defense & Mako Tactical

  • Flash Hider - Muzzle Brake

  • Flashlights & Lasers

  • GG&G Tactical Products

  • Guntec USA

  • Handguards - AR-15 Forearm - Quad Rail

  • KNS Precision


  • Magazines

  • Magpul Industries

  • Matrix Arms

  • MI Midwest Industries **

  • Mission First Tactical MFT


  • Optics - Holographic - Scopes

  • Pistol Grips Modular AR15 AR10 M16

  • Primary Weapons Systems **

  • RRA Rock River Arms

  • Samson Manufacturing **

  • Seekins Precision**

  • Shotguns

  • Sightmark

  • Slings and Accessories

  • Spike's Tactical

  • Stocks - AR15 M4 AR10 G3 FAL Buttstocks

  • Streamlight

  • Strike Industries

  • Triggers

  • Troy Industries

  • UTG Ultimate Tactical Gear

  • Vertical Forward Grips AR15

  • VLTOR Weapons Systems

  • YHM Yankee Hill Machine Company

  • View All Products ->

    All Products sorted by Categories ->

    All Products sorted by Manufacturers ->
    Specials more
    VLTOR VC-AKSU22 Flash Hider .223 Krink AK74 Defender VII Warrior
    VLTOR VC-AKSU22 Flash Hider .223 Krink AK74 Defender VII Warrior
     $99.95  $89.95 
    Who's Online
    There currently are 50 guests and 
    1 member online.
    MAGPUL ACS Carbine Stock Commercial Tube MAG371 AR15 AR10 [MAG371]  $109.95  $76.95 

    MAGPUL ACS Carbine Stock – Commercial Tube MAG371 AR15



    The patent-pending Magpul ACS (Adaptable Carbine/Storage) – Commercial-Spec Model is a drop-in replacement butt-stock for carbines using NON mil-spec receiver extension tubes (AKA "Commercial"). A streamlined, anti-snag profile shields the release latch to prevent accidental activation and the extra-power lock mechanism uses a premium chrome-silicon spring to avert auto-collapse failure by resisting spring relaxation. Similar to the Magpul CTR™, the ACS also features a supplemental friction lock system that minimizes wobble* for enhanced weapon stability and accuracy. Dual, rear accessible, water-resistant battery storage tubes and an integral storage compartment in the butt of the stock provides multiple storage options. The ACS comes standard with a 0.30" thick rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.

    NOTE: There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec (1.14" diameter) and commercial-spec (1.17" diameter). If you have a mil-spec extension on your rifle, make sure to order the MILSPEC MAG370. Please see the "Related Info" section above to help determine which tube you have.

    Made in U.S.A.


    • Mounts on Commercial Carbine Receiver Extension tube (not included) from manufacturers such as Bushmaster, DPMS, RRA, Olympic, and others
    • Supplemental friction lock minimizes accuracy robbing wobble*
    • Premium chrome-silicon lock spring provides positive locking and long service life
    • Sloping cheek weld provides a wide contact surface for user comfort
    • Shielded release latch prevents snagging and accidental operation
    • Replaceable 0.30" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
    • Compatible with Magpul ASAP® and other receiver-mount sling attachments
    • Metal strike plate provides a hardened striking point on toe of stock
    • 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
    • Sling Mounts
      • Mid - Optional QD Sling Mount accommodates up to 1.5" push-button swivels (NOTE: QD Sling Mount Sockets are sold seperately.)
      • Rear/Bottom - 1.00" sling loop
    Optional Accessories**
    • Extended Rubber Butt-Pad, 0.55"
    • Enhanced Rubber Butt-Pad, 0.70"
    • Push-button QD Sling Mount Sockets
    • ACS, Commercial-Spec Carbine Stock (w/ Rubber Butt-Pad, 0.30")
      • Weight, Stock: 0.86 lb.
      • Weight, w/ Rec. Extension: 1.16 lb.
      • Length, Stock: 7.93 in.
      • LOP Adjustment Range: 3.3 in.
      • LOP, M4 Collapsed: 11.45 in.
      • LOP, M4 Extended: 14.75 in.

    ACS™ Carbine Stock Technical Resources:

    * Friction lock performance may vary depending on the receiver extension's dimensional tolerances.

    Available Options:
    Kit Options:
    Add Enhanced Buttpad MAG317:
    This product was added to our catalog on Saturday 01 May, 2010.
    Reviews Add to Wish List
    Customers who bought this product also purchased
    McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

    Quick Find
    Use keywords to find the product you are looking for.
    Advanced Search
    Your Account
    Your Email Address
    Your Password
    Featured more
    Kynshot Shotgun Recoil Reducing Hydraulic Buffer Pistol Grip Kit
    Kynshot Shotgun Recoil Reducing Hydraulic Buffer Pistol Grip Kit
     $213.90  $164.95 
    Reviews more
    Write ReviewWrite a review on this product!
    New Articles (0)
    All Articles (15)
    AR-15 Common Questions (15)
    Terms and Conditions
    Shipping and returns
    Is Inventory LIVE?
    What is PlugNpay?
    Is heartbleed safe?
    Gift Voucher FAQ
    Contact us
    Positive SSL on a transparent background
    VTSupply is PCI Compliant
    Follow VTSupply on Twitter
    Support GOA
    Take Action or Lose
    Support 22kill
    Support NRA

    McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams