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Magpul
Overview
The Magpul AR-15 ACS Stock is a collapsible stock designed for Mil-Spec buffer tubes, offering enhanced adjustability for shooters. Constructed from durable polymer, this stock features a streamlined design that provides a comfortable cheek weld and improved stability during use. It's commonly found on builds with a carbine gas system and chambered in 5.56 NATO, making it a practical choice for a wide range of applications from tactical to recreational shooting.
Specifications
Magpul AR-15 ACS Stock Collapsible Mil-Spec FDE
4 options
Available Merchants(6)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have added the Magpul AR-15 ACS Stock Collapsible Mil-Spec FDE to their builds on GunPartPicker. Since April 2026, it ranks #350 of the 560 stocks and braces builders have added.
It was hard to find in October 2026, in stock on only 10 of the 26 days we checked, and today 3 of the 6 retailers we track have it in stock. Buying today, the lowest price is $90.20 at Classic Firearms, above October's low of $73.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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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
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Spike's Tactical Stripped AR-15 Lower Receiver - Snowflake - Color Filled
Magpul AR-15 MOE Enhanced Trigger Guard FDE
Magpul Miad Gen 1.1 Grip KIT Polymer FDE
Bravo Company AR-15/M16 BCM Mil-Spec 6 Position Receiver Extension
Armaspec ST45: 45 Degree Short Throw Ambidextrous Safety Selector, Flat Dark Earth - ARM112-FDE
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Magpul Ar-15 Acs Stock Collapsible Mil-Spec Fde
| Build | Parts | Total |
|---|---|---|
 | 24 | $3723.25 |
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