Rifle PartsBrownellsSold by Brownells

Brownells

Ar-15 Ctr Stock Assy Collapsible Mil-Spec - Ar-15 Ctr Mil-Spec Collapsible Stock Assembly Black

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Includes Magpul

CTR buttstock and all mounting

Kit Includes

Mil-Spec buffer tube, carbine buffer,

Friction Locking

Mechanism reduces movement between the

Spring-loaded Hand

Lever allows fast length-of-pull adjustments

Nylon Polymer

Molded-in reinforcements at stress points

$107.99
View on Brownells

You'll be taken to Brownells to complete your purchase.

Hunter's Outpost earns a commission from affiliate links at no extra cost to you.

SKU: 078000203

Overview

This collapsible stock assembly is built for shooters who want a complete, easy-to-install setup for an AR-15 carbine. It includes the CTR buttstock along with the mounting hardware needed for installation, making it a practical choice for a rifle that will be adjusted and shouldered repeatedly in the field or at the range. The friction locking mechanism is designed to reduce movement between the stock and buffer tube, while the spring-loaded lever allows quick length-of-pull changes. Its nylon polymer body and molded-in reinforcements are intended to support hard use, and it accepts a variety of ambidextrous sling attachment options.

Why Hunters Choose the Brownells

Includes Ctr

Buttstock and all mounting hardware

Friction Locking

Mechanism reduces movement between the

Spring-loaded Hand

Lever allows fast length-of-pull adjustments

Nylon Polymer

Molded-in reinforcements at stress points

Accepts Variety

Of ambidextrous sling attachment options

Key Features

  • Includes the Magpul CTR buttstock and all mounting hardware needed for installation.
  • Kit includes a Mil-Spec buffer tube, carbine buffer, chrome silicon recoil spring, receiver end plate, and castle nut.
  • Friction locking mechanism reduces movement between the buffer tube and buttstock.
  • Spring-loaded hand lever allows fast length-of-pull adjustments.
  • Nylon polymer body with molded-in reinforcements at stress points.
  • Accepts a variety of ambidextrous sling attachment options, including web slings.

Best Used For

  • Hunters wanting a complete collapsible stock kit for straightforward AR-15 installation
  • Users who prefer a locked-up stock feel with minimal movement at the shoulder
  • Shooters needing quick length-of-pull adjustments for changing clothing or shooting positions
  • Field users looking for a durable polymer stock assembly with reinforced stress points
  • Those wanting ambidextrous sling attachment compatibility in a mil-spec setup

Specifications

All Milspec Kits ComponentsBrownells Buffer Tube, Recoil Chrome Silicon Spring, Receiver End Plate, D.S Arms Buffer, DPMS Lock Ring
Body MaterialNylon polymer
Carbine BufferYes
Castle NutYes
Chrome Silicon Recoil SpringYes
Ctr Buttstock IncludedYes
Friction Locking MechanismYes
Hand LeverSpring-loaded
Length Of Pull AdjustmentYes
Mil Spec Buffer TubeYes
Receiver End PlateYes
ReinforcementsMolded-in reinforcements at stress points
Sling Attachment CompatibilityAmbidextrous sling attachment options, including web slings and si

Pros

  • Includes the CTR buttstock and all mounting hardware needed for installation.
  • Friction locking mechanism reduces movement between the buffer tube and buttstock.
  • Spring-loaded hand lever allows fast length-of-pull adjustments.
  • Nylon polymer body is designed with molded-in reinforcements at stress points.
  • Accepts a variety of ambidextrous sling attachment options.

Considerations & Trade-offs

  • Includes the stock assembly and mounting hardware, so it is aimed at a complete installation rather than a stock-only swap.
  • The friction-lock design is intended to reduce movement between the buffer tube and buttstock, which adds stability but also means a more deliberate adjustment setup.
  • Length-of-pull changes are quick with the spring-loaded lever, but the collapsible format still involves choosing a fixed position rather than a fully continuous adjustment.
  • The kit is specified as Mil-Spec, so fitment is tied to that standard and may not suit non-Mil-Spec setups without verification.

Suggested Comparisons

  • AR-15 stocks
  • AR-15 buffer tube kits
  • AR-15 sling attachment accessories

Suggested Accessories

  • Ambidextrous sling attachment
  • Web sling
  • AR-15 buffer tube accessories
  • Carbine buffer spring

Frequently Asked Questions

What is included in this CTR stock assembly kit?

The kit includes the Magpul CTR buttstock, a Mil-Spec buffer tube, carbine buffer, chrome silicon recoil spring, receiver end plate, and castle nut.

Does this stock assembly include the parts needed for installation?

Yes. The description says it includes the buttstock and all mounting hardware needed for an easy installation.

What adjustment feature does the CTR buttstock offer?

It uses a heavy duty, spring-loaded hand lever for fast length-of-pull adjustments.

Does the stock lock up tightly on the buffer tube?

The description says it has a friction locking mechanism that eliminates movement between the buffer tube and buttstock for a solid feel when mounting the rifle to the shoulder.

What sling attachment options does it support?

It accepts a variety of ambidextrous sling attachment options, including web slings and side-mounted sling setups, as stated in the product description.