Magpul ACS Mil-Spec Carbine Stock: Elevate Your AR15/M4 Performance and Storage Capabilities

For serious shooters, tactical professionals, and dedicated firearm enthusiasts, optimizing your AR15 or M4 carbine goes beyond mere aesthetics. It's about enhancing functionality, improving ergonomics, and ensuring your rifle is ready for any challenge. The Magpul ACS (Adaptable Carbine/Storage) Mil-Spec Stock in Black stands as a premier solution, meticulously engineered to address the critical needs of modern carbine users. Manufactured with Magpul's renowned commitment to quality right here in the USA, this drop-in replacement buttstock is specifically designed for AR15/M4 carbines utilizing mil-spec sized receiver extension tubes, offering a transformative upgrade in stability, comfort, and vital on-board storage.

Unparalleled Storage and Accessibility

One of the standout features that sets the Magpul ACS stock apart is its intelligent and robust storage integration. Unlike many conventional stocks, the ACS isn't just a point of contact for your shoulder; it's a vital, discreet, and highly functional storage hub.

• Dual Water-Resistant Battery Tubes: Positioned strategically on either side of the stock, these tubes are easily accessible from the rear. They are designed to be water-resistant, protecting sensitive items like CR123A batteries (perfect for optics, weapon lights, or other essential electronic accessories) from the elements. This means no more fumbling for spares in a pouch or pack when seconds count, whether you're on the range, in the field, or responding to a critical incident. Each tube can typically hold two CR123A batteries or small, similarly sized items.
• Integral Storage Compartment: Beyond the battery tubes, the butt of the stock features an additional, integral storage compartment. This often-overlooked space provides even more versatile storage options for small tools, cleaning supplies, emergency cash, or even an extra set of earplugs. This multi-faceted storage capability significantly reduces the need for external pouches, streamlining your gear setup and keeping critical items immediately at hand.

These storage solutions are not just an add-on; they are seamlessly integrated into the stock's design, maintaining its sleek profile and preventing snags. This thoughtful engineering ensures that essential items are always with your rifle, ready for deployment.

Superior Ergonomics and Shooting Stability

The contact points between you and your rifle are paramount for accuracy and control. The Magpul ACS excels in this regard, providing a user experience that enhances both comfort and performance.

• Optimized Rubber Butt-Pad (0.30" Thick): The ACS comes standard with a high-quality, 0.30-inch thick rubber butt-pad. This isn't just about cushioning; it's about providing a positive, non-slip shoulder purchase. Whether you're wearing body armor, a plate carrier, or other modular gear, this durable rubber pad grips securely, preventing the stock from slipping during rapid fire or dynamic movements. This consistent shoulder placement is crucial for maintaining sight alignment, reducing muzzle rise, and delivering more accurate follow-up shots.
• Enhanced Cheek Weld: The design of the ACS stock offers a broad and comfortable cheek weld area. A stable cheek weld is fundamental for consistent sight picture, especially when utilizing optics. The wide surface area distributes pressure evenly, minimizing discomfort during extended shooting sessions and promoting a natural, repeatable shooting position. This contributes directly to improved precision and reduced shooter fatigue.
• Adjustable Length of Pull (LOP): Catering to various body types, gear configurations, and shooting stances, the ACS stock provides an adjustable length of pull, ranging from 11.60 inches to 14.90 inches. This adaptability ensures that shooters can find their optimal LOP for maximum comfort, control, and eye relief with their chosen optics setup. Achieving the perfect LOP is a key factor in recoil management and overall shooting efficiency.

Built for Duty: Mil-Spec Compatibility and Magpul Durability

When selecting components for a critical platform like the AR15, compatibility and durability are non-negotiable. The Magpul ACS is engineered to meet and exceed these expectations.

• Mil-Spec Sized Receiver Extension Tubes: This stock is specifically designed as a "drop-in replacement" for AR15/M4 carbines equipped with mil-spec (military specification) sized receiver extension buffer tubes. Understanding "mil-spec" is vital: it refers to a set of standardized dimensions and material specifications ensuring interchangeability and reliability across various manufacturers adhering to these military standards. This means that if your carbine uses a genuine mil-spec buffer tube, the Magpul ACS will fit perfectly, providing a snug, wobble-free interface that contributes to overall rifle stability and responsiveness.
• Robust Synthetic Construction: Magpul is renowned for its use of high-strength, impact-resistant polymer materials. The ACS stock is no exception, crafted from a durable synthetic blend that can withstand the rigors of field use, extreme temperatures, and harsh environments. This robust construction ensures the stock will perform reliably for years, shrugging off bumps, drops, and general wear and tear without compromising its structural integrity or functionality.
• Made in the USA Quality: The "Made in the USA" stamp is more than just a label; it signifies Magpul's commitment to precision manufacturing, stringent quality control, and supporting domestic production. This dedication results in a product you can trust, built to exacting standards by skilled American workers.

Who Benefits from the Magpul ACS Stock?

The Magpul ACS stock is an ideal upgrade for a diverse range of AR15/M4 users seeking to enhance their carbine's capabilities.

• Tactical Operators & Law Enforcement: The integrated storage for batteries and essentials, combined with enhanced stability and a positive shoulder purchase (even with body armor), makes the ACS a preferred choice for professionals who rely on their carbine in high-stakes situations. Quick access to spare batteries for weapon lights and optics is invaluable.
• Competitive Shooters: Precision, speed, and consistency are key in competitive shooting. The ACS's stable cheek weld, recoil-absorbing butt-pad, and adjustable LOP contribute directly to faster target acquisition, improved follow-up shots, and reduced fatigue over long stages.
• Home Defense Enthusiasts: For those prioritizing home protection, having a reliable and ergonomic carbine is paramount. The ACS provides the stability needed for accurate engagement in stressful scenarios, while the on-board storage ensures your critical accessories are powered and ready.
• Avid Shooters & Custom Builders: Anyone looking to elevate their AR15's performance beyond basic factory configurations will find the ACS a worthwhile investment. Its blend of comfort, functionality, and durability makes it a solid foundation for a highly capable custom build or an existing rifle upgrade.
• Hunters: While often associated with tactical applications, the ACS stock's features also benefit hunters using AR-platform rifles. Its ruggedness, comfortable cheek weld for extended periods of holding a sight picture, and integrated storage for small tools or a rangefinder battery can prove highly advantageous in the field.

Why Choose the Magpul ACS from DEGuns?

When considering an upgrade like the Magpul ACS stock (UPC 873750001005), the retailer you choose matters. DEGuns.com is your trusted source for genuine Magpul products, ensuring you receive authentic, high-quality gear backed by excellent customer service. Investing in a Magpul ACS stock means investing in:

• Enhanced Shooting Performance: Experience improved stability, better recoil absorption, and more consistent accuracy.
• Streamlined Gear Management: Keep vital accessories and tools immediately accessible on your rifle, reducing reliance on external pouches.
• Uncompromising Durability: Rely on Magpul's legendary robust construction that withstands the most demanding conditions.
• Tailored Ergonomics: Adjust the stock to your perfect length of pull and enjoy a comfortable, secure cheek weld for extended shooting sessions.
• Proven Reliability: Trust a stock designed and manufactured in the USA to Mil-Spec standards, ensuring seamless integration with your carbine.

The Magpul ACS stock is more than just a rifle part; it's a performance enhancer, a storage solution, and a testament to Magpul's innovative design philosophy. It empowers you to optimize your AR15/M4 for any mission, ensuring it's always adaptable, comfortable, and ready to perform.

Product Specifications Overview

The following table provides a concise summary of the key features and specifications for the Magpul ACS Mil-Spec Carbine Stock in Black, identified by UPC 873750001005.

Feature	Detail
Brand	Magpul
Model Series	ACS Carbine Stock
Firearm Fit	AR15/M4 Carbines
Stock Material	High-Strength Synthetic
Overall Length (OAL)	8.0 inches
Receiver Tube Type	Mil-Spec
Butt Pad Material	0.30" Thick Rubber
Key Features	Dual Battery Storage, Integral Compartment
Length of Pull (LOP)	11.60" - 14.90"
Weight	14.10 ounces
Stock Finish	Black
Manufacturer Part Number (MPN)	MAG370-BLK
Universal Product Code (UPC)	873750001005