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Magpul
Overview
The Magpul ACS-L Stock is a collapsible stock designed for Mil-Spec buffer tubes, offering a streamlined profile that enhances the overall ergonomics of your AR-15. Made from durable polymer, this stock provides a solid and stable platform for your rifle, ensuring reliable performance during use. This stock is frequently found in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a popular choice for those looking for a balance of functionality and weight savings.
Specifications
Magpul AR-15 ACS-L Stock Collapsible Mil-Spec Gray
4 options
Available Merchants(8)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have been adding the Magpul AR-15 ACS-L Stock Collapsible Mil-Spec Gray to their builds on GunPartPicker since February 2026. All time, it ranks #205 of the 463 stocks and braces builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 6 of the 8 retailers we track have it in stock. Prices barely moved in September 2026, holding around $65.99, so there haven't been real sales lately. Buying today, the lowest price is $65.99 at Brownells, which matches the best price we saw in September.
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
CMMG AR-15 Mil-Spec Trigger KIT
Ergo Grips Suregrip Tactical Deluxe Grip Polymer Black
Aero Precision M4E1 Stripped AR-15 Lower Receiver - Black
Geissele Automatics AR-15 Premium Buffer Tube Ddc
Radian Weapons AR-15 Raptor/talon L/s Combo Black Anodized
BCM® MK2 SS410 18" Rifle Complete Upper Receiver Group w/ MCMR-15 Handguard 1/8 Twist
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.
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