Magpul

Magpul AR-15 STR Stock Collapsible Commercial Black

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Magpul Ar-15 Str Stock Collapsible Commercial Blk - Stock & Brace for AR-15 - view 1
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Magpul

Overview

The Magpul AR-15 STR Stock is a collapsible polymer stock designed for commercial buffer tubes, providing a lightweight and durable option for your build. Its ergonomic design enhances user comfort while maintaining a low profile, allowing for quick adjustments in length to suit various shooting scenarios. This stock is frequently found in builds chambered in 5.56 NATO, making it a popular choice for those looking to optimize their AR-15 for versatility and performance.

Specifications

MPNMAG471-BLK
Tube SpecCommercial
MaterialPolymer
ColorBlack
Stock TypeCollapsible

Available Merchants(5)

Prices checked

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KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
Out of Stock
$60.99
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Sportsmans Outdoor Superstore logo
Sportsmans Outdoor Superstore
Flat rate shipping
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Out of Stock
$63.99
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Brownells logo
Brownells
Free shipping over $99
Shipping Speed
Out of Stock
$64.99
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BattleHawk Armory logo
BattleHawk Armory
Shipping varies
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Out of Stock
$80.70
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AT3 Tactical logo
AT3 Tactical
Shipping TBD
Shipping Speed
Out of Stock
$80.70
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Build history on GunPartPicker

Builders have added the Magpul AR-15 STR Stock Collapsible Commercial Black to their builds on GunPartPicker. Since April 2026, it ranks #205 of the 560 stocks and braces builders have added.

It was out of stock everywhere we track every time we checked in October 2026, and today none of the 5 retailers we track has it in stock right now. Listed prices start at $60.99 at KY Gun Company for when it comes back.

Trending stocks and braces →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

Not sure which stock & brace to pick?

We ranked every stock & brace by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Stock Popularity Report →

Check it against the live catalog:

Frequently Built With

The part most often added in each category by the builds that include this one

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4

Upper Receiver$129 · out of stockin 22% of them
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom

Lower Receiver$155 · out of stockin 11% of them
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Trigger$335in 33% of them
Radian Weapons AR-15 Raptor-SD Ambidextrous Charging Handle OD Green

Radian Weapons AR-15 Raptor-SD Ambidextrous Charging Handle OD Green

Charging Handle$119in 22% of them
Magpul MOE K2 Grip Polymer Gray

Magpul MOE K2 Grip Polymer Gray

Pistol Grip$15in 33% of them
Geissele Automatics Reliability Enhancement KIT H3

Geissele Automatics Reliability Enhancement KIT H3

Bolt Carrier Group$455 · out of stockin 11% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

90.6%
AR-1590.6%
AR-106.2%
AR-93.2%

Caliber

70.6%
5.56 NATO70.6%
300 Blackout8.6%
.223 Wylde8.4%
.308 Win5.2%
9mm2.3%
Other5%

Gas System

52.1%
Mid-Length52.1%
Carbine26.3%
Rifle10.3%
Pistol9.9%
Blowback1%
Other0.3%

Builds Featuring This Part

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Builds in the community that include the Magpul Ar-15 Str Stock Collapsible Commercial Blk

BuildPartsTotal
Aero precision 11.5" 5.56 build
Aero precision 11.5" 5.56		10$1001.43
Backup build build
Backup build		18$4461.73

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