TacFire MAR110 A2 Mil-Spec Buffer Tube Kit: The Essential Core for Your AR-15 Fixed Stock Build

Are you an AR-15 enthusiast looking to build a new rifle, convert an existing carbine to a classic fixed-stock configuration, or simply replace a worn-out buffer system component? The TacFire MAR110 A2 Mil-Spec Buffer Tube Kit is precisely what you need. This comprehensive kit provides the foundational components necessary to accept a traditional A2 fixed buttstock, offering a reliable, durable, and historically accurate foundation for your AR-15 rifle.

This kit addresses a common need among shooters and builders: transitioning from an adjustable six-position carbine stock to a robust, non-collapsible A2 rifle stock. Whether for enhanced shooting stability, specific state compliance requirements, or a preference for the timeless aesthetic and ergonomics of the A2 design, this kit makes the conversion straightforward and effective. It's specifically engineered for 5.56x45mm NATO and .223 Remington AR-15 platforms, ensuring optimal performance and compatibility.

Understanding the A2 Mil-Spec Buffer Tube System: Why It Matters for Your AR-15

The buffer tube, also known as the receiver extension, is a critical component of any AR-15 rifle. It houses the buffer and buffer spring, which are essential for the firearm's cycling of operations. As the bolt carrier group (BCG) moves backward under recoil, the buffer and spring absorb the impact and then push the BCG forward again to chamber a new round. The consistency and reliability of this system are paramount for the rifle's smooth operation and longevity.

An A2 Mil-Spec (Military Specification) buffer tube, unlike its carbine counterpart, is designed for fixed buttstocks. These rifle-length tubes are generally longer, accommodating a heavier rifle buffer and a longer buffer spring. This combination contributes to a smoother recoil impulse, which many shooters find more comfortable and controllable, especially during rapid fire. The A2 system offers a fixed length of pull, which can be advantageous for shooters who prefer a consistent, unchanging cheek weld and aiming position.

Key Components of the TacFire MAR110 A2 Mil-Spec Buffer Tube Kit

The TacFire MAR110 kit is designed to provide everything you need for the internal buffer system when installing an A2 stock, excluding the stock itself. This includes:

• A2 Mil-Spec Buffer Tube (Receiver Extension): Crafted from high-quality black aluminum, this rifle-length tube is manufactured to strict military specifications. It provides the rigid housing for the buffer and spring, acting as the backbone for your fixed stock. Its robust construction ensures long-term durability and resistance to wear and tear. A standard rifle-length buffer tube is approximately 10.0625 inches (or about 25.5 cm) long, providing the necessary internal volume for the rifle buffer and spring.
• Rifle Buffer: This heavier buffer is specifically weighted for the A2 rifle system. Its mass helps to slow down the bolt carrier group's rearward travel, contributing to the smoother recoil sensation and reducing stress on the firearm's components. The rifle buffer is distinct from carbine buffers in both length and weight.
• Rifle Buffer Spring: At 12.75 inches in length, this spring is designed to provide the correct tension and resistance for the rifle buffer system. Its consistent compression and expansion are vital for reliable feeding, extraction, and ejection. The specific length and coil count are optimized for the standard AR-15 rifle gas system, ensuring proper cycling with 5.56x45mm NATO and .223 Remington ammunition.

What This Kit Enables:

• Seamless A2 Stock Integration: This kit is the essential bridge to install any standard A2 fixed buttstock onto your AR-15 lower receiver. It allows for a stable and non-collapsible stock solution.
• Reliable Cycling: The precisely matched buffer and spring work in harmony to ensure consistent and reliable operation of your AR-15's action, shot after shot.
• Enhanced Shooting Experience: Many shooters report a softer, more predictable recoil impulse with an A2 rifle buffer system compared to carbine systems, leading to improved comfort and control.
• Classic Aesthetics: For those who appreciate the traditional look of the M16A2/A4 service rifle, this kit provides the correct internal components to achieve that iconic appearance.
• Compliance Solutions: In jurisdictions where adjustable stocks are restricted, converting to a fixed A2 stock using this kit can be a viable solution for maintaining legal compliance.

Who Can Benefit from the TacFire MAR110 Kit?

This buffer tube kit is an invaluable asset for various AR-15 owners and builders:

• New AR-15 Builders: If you're constructing an AR-15 from a stripped lower receiver and intend to use a fixed A2 stock, this kit provides the core components for your buffer system.
• AR-15 Modifiers and Customizers: For shooters who currently have an adjustable carbine stock and wish to convert their rifle to a fixed A2 configuration, this kit offers a direct and efficient upgrade path.
• Maintenance and Repair Technicians: If your existing A2 buffer tube, buffer, or spring has been damaged, worn out, or lost, this kit serves as a high-quality replacement, restoring your rifle's functionality.
• Compliance-Focused Shooters: In states or regions with specific regulations regarding adjustable stocks, this kit is crucial for converting your AR-15 to a legally compliant fixed-stock setup.
• Aesthetics Enthusiasts: Those who prefer the classic, military-issue appearance and fixed length of pull of an M16A2/A4-style rifle will find this kit indispensable for achieving that look and feel.

Installation and Compatibility: Getting Started with Your A2 Conversion

Installing the TacFire MAR110 A2 Mil-Spec Buffer Tube Kit is a straightforward process for anyone familiar with basic AR-15 assembly. While professional gunsmithing is always recommended for critical components, many enthusiasts choose to perform this upgrade themselves.

General Installation Steps (Consult your rifle's manual and seek professional assistance if unsure):

• Safety First: Ensure your firearm is unloaded and cleared.
• Disassembly (if applicable): Remove your existing buttstock and buffer system components (carbine buffer tube, buffer, spring, castle nut, end plate).
• Receiver Extension Installation: Thread the TacFire A2 Mil-Spec Buffer Tube into the rear of your AR-15 lower receiver.
• Buffer and Spring Insertion: Insert the rifle buffer, followed by the 12.75-inch rifle buffer spring, into the newly installed buffer tube.
• Stock Attachment: Slide your A2 fixed buttstock onto the buffer tube and secure it according to the stock's manufacturer instructions, typically with a screw that goes into the end of the buffer tube.

This kit is designed specifically for AR-15 platforms chambered in 5.56x45mm NATO and .223 Remington. It maintains the Mil-Spec dimensions necessary for broad compatibility with a wide range of AR-15 lower receivers and A2 fixed buttstocks available on the market. Always ensure that any additional components you purchase (like the A2 stock itself) are also Mil-Spec to guarantee a perfect fit and function with this kit.

The TacFire Advantage: Quality and Reliability

TacFire has established itself as a reputable provider of high-quality firearm accessories and components. The MAR110 A2 Mil-Spec Buffer Tube Kit exemplifies their commitment to excellence, offering shooters and builders a product that stands up to rigorous use.

• Precision Engineering: Each component in the kit is manufactured with precise tolerances, ensuring a tight fit and reliable operation within your AR-15.
• Durable Materials: Constructed from robust aluminum, the buffer tube is built to withstand the demands of recoil and continuous use, offering a long service life.
• Performance Tested: TacFire components are designed for optimal performance, contributing to the smooth and consistent cycling of your AR-15. This means fewer malfunctions and a more enjoyable shooting experience.
• Cost-Effective Solution: As a comprehensive kit, the MAR110 offers a cost-effective way to acquire all the necessary internal components for your fixed stock conversion or build, without having to source individual parts.

Investing in a quality buffer system like the TacFire MAR110 A2 Mil-Spec Kit is crucial for the overall reliability and performance of your AR-15 rifle. It directly impacts the firearm's ability to cycle correctly, manage recoil effectively, and maintain its operational integrity under various conditions.

Where to Purchase the TacFire MAR110 A2 Mil-Spec Buffer Tube Kit

When you're ready to upgrade your AR-15 or complete your new build, the TacFire MAR110 A2 Mil-Spec Buffer Tube Kit, with UPC 811261026490, is available at DEGuns. As a trusted retailer for firearm components and accessories, DEGuns ensures you receive genuine TacFire products and offers a convenient shopping experience for all your AR-15 needs.

This kit is more than just a collection of parts; it's an investment in the performance, reliability, and customizability of your AR-15. Whether you're aiming for classic aesthetics, enhanced stability, or compliance, the TacFire MAR110 provides the robust foundation you need.

Feature	Detail
Brand	TacFire
Series	Buffer Tube Kit
Model	A2 Mil-Spec
Caliber Compatibility	5.56x45mm NATO, .223 Rem
Firearm Fit	AR-15 Rifle
Type	Buffer Assembly
Gun Style	AR-Platform
Length (Tube)	6" (as per original spec)
Weight	11.90 oz
SKU	104755
UPC	811261026490
MPN	MAR110