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Pistol Caliber Carbine Uppers
Palmetto State Armory has a wide selection of 9mm carbine upper receivers that are made right here in the USA. Choose from a variety of barrel lengths, furniture configurations, and accessory options to find the right upper for your dream build.
Customers are responsible for ensuring that when assembling kits, they must adhere to all Local, State, and Federal laws.
PA-9 Upper PCC FAQ
What is a PA-9 Upper PCC?
A PA-9 upper receiver assembly is a part made for Palmetto State Armory’s PA-9 series. This series uses popular pistol calibers like 9mm. This part is critical to the firearm, housing the barrel, bolt carrier group, and handguard.
Engineers design these assemblies for reliable performance and smooth cycling. They work well with many lower receivers. This makes them a popular choice for shooters who want to build or upgrade their pistol caliber carbines.
What Are the Key Features?
- Caliber Compatibility: Most are chambered in 9mm, ideal for affordable target shooting, training, and home defense.
- Barrel Length Options: Available in different lengths, usually from 4” to 16”. This lets users pick the best option.
- Handguard Styles: Many come with free-floating M-LOK handguards, providing ample space for accessories and improved accuracy.
- Bolt Carrier Group: Designed specifically for blowback operation, ensuring reliable cycling with pistol calibers.
- Last Round Bolt Hold Open (LRBHO): Some models have LRBHO. This feature keeps the bolt open after the last round fires. It makes using the firearm easier and safer.
- Optics Ready: Most feature a flat-top Picatinny rail, making it easy to mount optics, sights, or other accessories.
Why Choose This Upper for Your Build?
- Versatility: It can be paired with compatible lower receivers. This lets you create a custom pistol caliber carbine that fits your needs.
- Cost-Effective Shooting: 9mm ammunition is usually cheaper than rifle rounds. This makes it a great choice for frequent range sessions.
- Reduced Recoil: Pistol calibers have less recoil than regular rifle rounds. This allows for quicker follow-up shots and easier handling, especially for new shooters.
- Customization: This upper has different barrel lengths, handguard styles, and accessory options. You can customize it for competition, home defense, or recreational shooting.
How Do You Select the Right One?
When choosing, consider the following factors:
- Intended Use: Decide if you prefer a compact setup for home defense or a longer barrel for target shooting and more speed.
- Handguard Preference: Decide between M-LOK or KeyMod handguards based on your accessory needs and personal preference.
- Barrel Length: Shorter barrels offer maneuverability, while longer barrels can provide improved accuracy and velocity.
- Compatibility: Ensure the upper is compatible with your lower receiver, especially if you plan to use Glock-style or Colt-style magazines.
- Accessory Mounting: Look for models with ample rail space if you plan to add optics, lights, or other accessories.
What Accessories Work Well?
The modular design allows for a wide range of accessories to enhance performance and usability:
- Optics: Red dot sights and holographic sights are popular choices for quick target acquisition.
- Iron Sights: Flip-up iron sights can serve as a reliable backup to electronic optics.
- Weapon Lights: Mounting a light on the handguard can improve visibility in low-light conditions.
- Foregrips: Vertical or angled foregrips can enhance control and comfort during rapid fire.
- Suppressors: Many feature threaded barrels, allowing for the attachment of muzzle devices or suppressors.
What Maintenance is Required?
Regular maintenance is essential to keep your upper running smoothly:
- Cleaning: After each range session, clean the barrel, chamber, and bolt carrier group to remove fouling and debris.
- Lubrication: Apply a light coat of lubricant to moving parts to ensure reliable cycling.
- Inspection: Periodically check for signs of wear or damage, especially on the bolt, extractor, and firing pin.
- Handguard and Rail Care: Keep the handguard and rail system free of dirt and debris to maintain accessory mounting integrity.
What Are the Benefits for Training?
- Ammunition Cost Savings: 9mm ammo is less expensive than rifle calibers, allowing for more practice without breaking the bank.
- Similar Controls: The design keeps the familiar AR-15 controls. This makes it a great training tool for AR-15 users.
- Less Noise and Recoil: Lower noise and reduced recoil help you focus on the basics and improve your shooting skills.
- Indoor Range Friendly: Many indoor ranges allow pistol caliber carbines, providing more opportunities for year-round training.
How Does It Compare to Other Pistol Caliber Uppers?
- Palmetto State Armory Quality: PSA is known for producing high-quality firearms and components at competitive prices.
- Customization Options: The wide range of available configurations allows shooters to build a carbine that fits their exact needs.
- Community Support: The popularity of the platform means there is a wealth of information, accessories, and aftermarket support available.
Conclusion
A PA-9 upper receiver from Palmetto State Armory is an excellent choice for anyone looking to build or upgrade a pistol caliber carbine. With robust construction, versatile features, and compatibility with a variety of accessories, it delivers reliable performance for training, competition, and recreational shooting.
This upper is great for everyone. It is fun and affordable. Whether you are an experienced shooter or new to the AR platform, you will enjoy it. Explore the full selection at Palmetto State Armory to find the perfect match for your next build.