Magpul CTR Carbine Stock Mil-Spec AR-15 – MAG310

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An Upgrade For MOE Carbine Stocks For Enhanced Weapon Stability

The Magpul CTR Carbine Stock Mil-Spec is an upgrade for MOE Carbine stock that features a supplemental friction lock system that minimizes excessive stock movement for enhanced weapon stability.

The Compact/Type Restricted Stock is a drop-in replacement buttstock for AR-15/M16 carbines using MIL-SPEC receiver extensions. Designed for light and fast action capability, the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation.

Magpul CTR Carbine Stock Mil-Spec AR-15 - MAG310

Supplemental Friction Lock To Minimize Wobbling

Magpul CTR Carbine Stock Mil-Spec can be easily installed designed with a low-profile sloping cheek weld for a streamlined look and comfortable aiming. It delivers a solid installation that makes wobbling, rattling, play and noise virtually vanish.

An ambidextrous QD sling mount is added and will accept any push-button sling swivel. Also includes a standard 0.30″ thick rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.

Magpul CTR Carbine Stock Mil-Spec AR-15 - MAG310


  • 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)
  • Supplemental friction lock minimizes accuracy robbing wobble*
  • Sloping cheek weld combines a slim profile with user comfort
  • Shielded release latch prevents snagging and accidental operation
  • Premium chrome-silicon lock spring provides positive locking and long service life
  • Side mounting slots accept optional cheek risers for NON-AR15/M16 applications
  • Removable 0.30″ Rubber Butt-Pad offers an anti-slip surface and increases impact protection
  • Compatible with Magpul ASAP® and other receiver-mount sling attachments
  • Sling Mounts
  • Rear – Push-button QD swivel sling mount accommodates up to 1.5″ swivels (ambidextrous)
  • Rear/Bottom – 1.25″ sling loops
  • Toe – Lanyard hole for custom para-cord rigs
  • Optional Accessories**
  • Extended Rubber Butt-Pad, 0.55″
  • Enhanced Rubber Butt-Pad, 0.70″
  • Cheek Risers (0.25″, 0.50″, 0.75″ for NON-AR15/M16 applications)


  • CTR, Mil-Spec (stock configuration)
  • Platform AR10, AR15, M4, M16, M110, SR25
  • Compatibility Mil-Spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others
  • LOP, M4 Collapsed ~10.5 in.
  • LOP, M4 Extended ~13.8 in.
  • LOP Adjustment Range 3.3 in.
  • Length, max 6.9 in.
  • Weight 8.8 oz.
  • Weight, w/ receiver extension 12.8 oz.


  • There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec and commercial-spec. If you have a commercial-spec extension on your rifle, either order a Mil-Spec buffer tube to replace the old one or order the Magpul CTR Carbine Stock – Commercial-Spec AR-15 – MAG311.
  • If you happen to have one of the uncommon military tubes with an extended slant-back along with the Mil-Spec CTR, you will also need to order the Extended Rubber Butt-Pad, 0.55″ (sold separately).
  • Friction lock performance may vary depending on the host receiver extension’s dimensional tolerances.
  • Specifications based on standard-length (flat-back) M4 Carbine receiver extension and may vary depending on tube manufacturer.

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Magpul Warranty Information

If you ever experience an issue with a Magpul product at any time, regardless of where it was purchased, please contact us directly and we’ll do everything reasonable to help you.

To make a return, please take the following steps:

  • BEFORE returning any products, please contact us first to receive an RMA number (Return Merchandise Authorization) and prominently write it on the outside of the package. Packages will not be accepted without an RMA.
  • Include a note with your name, shipping address, phone number and email, RMA number, and reason for the return (including, if applicable, information about the firearm, ammunition, and usage environment for defective returns). Do not send ammunition.
  • Wrap the item with quality padding and place it in the original packaging or in an appropriate box for shipping.
  • A UPS shipping label will be provided in your shipment. If using the original packaging, remove or cover the original shipping label. Tape the preprinted return shipping label to the outside of the box. Drop package at an official or authorized UPS drop-off location.
  • All refunds will be applied to the credit card used for the original purchase. You should allow one to two billing cycles for the refund to appear on your statement.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 32 reviews
Yordanis Alvarez
Great quality and price

Fast delivery and good prices

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

James Foster
Great product

Fast delivery and easy to install

Thanks for sharing your feedback! We're glad you're satisfied with your purchase. Cheers!

Dennis Butler
Looks great on my HA AR10

This stock is rock solid. Quality product.

Donald Anderson
Ctr stock every time

I'll allways go with any magpul friction lock stock on any ar build went with the magpul ctr milspec stock od green with this one and it looks great to say the least

Douglas Palmer

The product works great! This is my fourth build. AT3 had everything I was looking for and the right color.