The AR-15 platform's modularity is a key strength, and few upgrades are as impactful and readily available as swapping the buttstock. An A2 buttstock kit represents a classic and often sought-after upgrade, offering a balance of functionality, familiarity, and affordability. This guide delves into what constitutes an A2 buttstock kit, its compatibility, and factors to consider when choosing one for your build.
Understanding the A2 Buttstock
The A2 buttstock, characterized by its fixed, non-collapsible design and its distinct, somewhat squared shape, is a staple of the AR-15 world. It's known for its simplicity, reliability, and robust construction. Many shooters appreciate its straightforward design and the solid cheek weld it provides. Unlike collapsible stocks, the A2 offers a consistent length of pull, eliminating the need for adjustments.
What's Included in an A2 Buttstock Kit?
A complete A2 buttstock kit usually contains:
- The A2 Buttstock itself: This is the main component, offering the solid rear end for your rifle.
- Buttstock Tube: This is the receiver extension that fits inside your lower receiver. Different lengths are available, impacting the overall length of pull.
- Castle Nut: This secures the buttstock tube to the receiver.
- End Plate: This covers the rear end of the buffer tube, providing a clean finish.
- Hardware: Screws, washers, and potentially a buffer retainer are usually included to ensure proper installation.
Some kits may also include a buffer tube, though this is not always the case. Always double-check the kit's contents before purchasing.
Variations and Considerations
While the core components remain consistent, variations exist. You might find kits with different materials (e.g., polymer vs. aluminum) or finishes (e.g., matte black, FDE). Consider the overall weight and durability when making your selection. Polymer is lighter, while aluminum is typically more robust.
Compatibility: Key Factors to Check
Before purchasing an A2 buttstock kit, verifying compatibility is crucial:
- Receiver Extension (Buffer Tube) Diameter: Ensure the kit's buffer tube is compatible with your lower receiver. Most AR-15s use a standard diameter, but it’s crucial to confirm.
- Castle Nut Compatibility: Although less common, slight variations in castle nut dimensions exist. Confirm compatibility with the specified kit.
- Overall Length of Pull: This refers to the distance from the trigger to the buttstock. Consider your body size and shooting style when making your choice.
Improper compatibility could result in loose components and an unreliable firearm. Always double-check specifications before proceeding with any modifications.
Installation: A Step-by-Step Process (General Overview)
Installing an A2 buttstock kit generally involves:
- Removing the existing buttstock: This often requires specialized tools for removing the castle nut.
- Installing the new buffer tube: Carefully slide the tube into the lower receiver and secure it with the castle nut.
- Attaching the buttstock: Secure the buttstock to the buffer tube, following the manufacturer's instructions.
Detailed, step-by-step instructions are generally provided with each kit. If you're uncomfortable with firearm disassembly and assembly, seeking professional help from a qualified gunsmith is recommended.
Conclusion: Choosing the Right A2 Buttstock Kit
The A2 buttstock kit provides a reliable, affordable upgrade for your AR-15. Understanding the kit's components, confirming compatibility, and ensuring proper installation are essential steps in enhancing your shooting experience. Remember to prioritize safety and, if necessary, consult a professional gunsmith for assistance.
