Building your own AR-15 pistol can be a rewarding experience, offering customization and a deeper understanding of your firearm. This guide focuses on building an AR-15 pistol using parts from Palmetto State Armory (PSA), a popular choice for budget-conscious builders. We'll cover everything from selecting parts to assembly, ensuring you're well-equipped for a successful build. Remember to always follow all local, state, and federal laws regarding firearm ownership and assembly.
Choosing Your PSA AR-15 Pistol Parts Kit
The foundation of your build is the parts kit. PSA offers various kits, ranging in price and features. Consider these factors when selecting your kit:
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Complete Lower Receiver: This is the firearm's lower portion, containing the trigger, grip, and magazine well. PSA offers both stripped lowers (requiring additional parts) and complete lowers (ready to assemble). A complete lower is usually recommended for first-time builders, simplifying the process.
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Upper Receiver: This houses the barrel, bolt carrier group, and charging handle. Again, PSA offers complete uppers and stripped uppers. Complete uppers save time but are more expensive.
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Barrel: Barrel length significantly impacts the pistol's characteristics. Shorter barrels (7.5" to 10.5") are common in AR-15 pistols, offering improved maneuverability in close quarters. However, shorter barrels often result in increased recoil and muzzle flash. PSA offers barrels in various lengths and materials.
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Bolt Carrier Group (BCG): The BCG is a critical component, responsible for cycling the ammunition. PSA offers BCGs in different materials and finishes. A quality BCG is crucial for reliable function.
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Charging Handle: This is used to manually cycle the bolt. Choose a charging handle that's comfortable to use and fits your upper receiver.
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Handguard: This protects the barrel and provides a place to attach accessories. PSA offers handguards in different lengths and materials, such as aluminum and polymer.
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Brace: Because this is a pistol, you'll need a brace instead of a stock. These are designed to provide stability without being considered a stock by the ATF. PSA offers various braces to suit your preferences. Ensure you fully understand ATF regulations concerning braces before purchasing and installing.
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Other Components: Remember to factor in the cost of a pistol buffer tube, buffer spring, buffer, pistol grip, trigger, sights, and any other accessories you desire.
Sample PSA AR-15 Pistol Parts List
| Component | PSA Part Number (Example - Check PSA Website for Current Offerings) | Notes |
|---|---|---|
| Complete Lower | PSAK-L-415-B | Choose a configuration that suits your needs. |
| Complete Upper | PSAK-U-415-9 | Consider barrel length and handguard preference. |
| 7.5" Barrel | PA-15-75-BC-458 | Shorter barrels are common in AR-15 pistols but may increase recoil. |
| Bolt Carrier Group | PA-15-BCG-415 | Invest in a quality BCG for reliable function. |
| Charging Handle | PA-15-CH-CMT | Opt for an ambidextrous charging handle for easier operation. |
| SBA3 Brace | (Check PSA site for current offerings) | Ensure it complies with ATF regulations. |
| Handguard | (Check PSA site for current offerings) | Consider M-LOK or KeyMod for mounting accessories. |
| Pistol Buffer Tube | (Check PSA site for current offerings) | |
| Buffer Spring & Buffer | (Check PSA site for current offerings) | |
| Grip | (Check PSA site for current offerings) |
Assembling Your PSA AR-15 Pistol
Once you have all your parts, you can begin assembly. Numerous online resources, including PSA's own website and YouTube channels dedicated to AR-15 builds, provide detailed instructions and videos. These resources are invaluable for first-time builders. Take your time and carefully follow the instructions.
Key Steps (General Overview - Refer to Detailed Instructions):
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Lower Receiver Assembly: This involves installing the trigger group, grip, buffer tube, and buffer parts.
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Upper Receiver Assembly: This involves installing the barrel, BCG, charging handle, and handguard.
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Final Assembly: Carefully align the upper and lower receivers and connect them.
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Function Check: After assembly, perform a function check (dry firing) to ensure the firearm operates correctly before introducing live ammunition. This is crucial.
Essential Considerations for a Successful PSA AR-15 Build
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Tools: Gather the necessary tools, including an armorer's wrench, punch set, and torque wrench.
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Safety: Always prioritize safety. Handle firearms responsibly and follow all safety precautions.
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Patience: Building an AR-15 takes time and patience. Don't rush the process.
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Research: Research each step thoroughly before proceeding.
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Professional Help: If you're unsure about any step, seek assistance from an experienced gunsmith.
Legal Considerations
Before you begin, thoroughly research and understand all applicable federal, state, and local laws regarding the construction, ownership, and use of AR-15 pistols. Laws vary significantly by location, and non-compliance can result in severe penalties. Consider consulting with a legal professional specializing in firearms regulations if you have any questions or concerns.
This guide provides a general overview of building a PSA AR-15 pistol. Always refer to the specific instructions provided by PSA and other reputable sources for detailed information and safety precautions. Building your own AR-15 can be a rewarding experience, but it requires careful planning, attention to detail, and a commitment to safety. Remember to always handle firearms responsibly and legally.