PSA AR9

The AR9 is quickly becoming one of the most popular pistol caliber carbines (PCC) on the market today. Manufactured by Palmetto State Armory (PSA) and us at Gorilla Machining, both very well known in the firearms industry, the AR9 blends the versatility and familiarity of the AR-15 platform with the advantages of 9mm ammunition. Whether you're a seasoned gun owner, a competitive shooter, or someone looking for a reliable home defense weapon, the AR9 offers an exceptional balance of performance, affordability, and customization.

In this guide, we’ll explore everything you need to know about the AR9, from its features and advantages to the various configurations available, helping you make an informed decision about whether this firearm is the right choice for you.

The AR9 is a pistol caliber carbine based on the AR-15 platform, chambered in 9mm Luger. It combines the familiar ergonomics, handling, and modularity of the AR-15 with the more affordable and manageable 9mm ammunition. Unlike traditional AR-15 rifles, which are chambered for rifle calibers like .223 or 5.56, the AR9 is designed to use the same 9mm round commonly used in handguns.

The firearm operates on a blowback system rather than the gas-operated system found in traditional AR-15s. This system uses the energy from the fired cartridge to cycle the bolt, making the AR9 simpler to operate and more reliable with fewer moving parts. This straightforward action is ideal for a short-barreled PCC like the AR9, which is frequently used in close-quarters situations such as home defense and tactical shooting.

One of the standout features of the AR9 is its compatibility with Glock-style magazines. This makes the AR9 not only more affordable to operate but also allows users to easily interchange magazines between their Glock handguns and the PSA AR9. This commonality is highly valued by owners who already use Glock pistols and want a carbine-style weapon chambered in 9mm.

There are many reasons why the AR9 stands out in the growing pistol caliber carbine market. Below are some of the most notable benefits:

One of the biggest reasons shooters opt for pistol caliber carbines like the AR9 is the cost of ammunition. 9mm is one of the most affordable rounds available, and it’s much cheaper than rifle calibers like .223 or 5.56. This makes the PSA AR9 a great choice for range use, training, or competitive shooting without breaking the bank. Even with regular practice, you'll save money compared to using a traditional AR-15.

The AR9 also offers minimal recoil compared to traditional AR-15 rifles. The lighter, shorter 9mm cartridge makes it easy for new shooters to handle and for experienced shooters to fire rapidly with follow-up shots. This reduced recoil can be especially advantageous in home defense situations where rapid, controlled shooting is essential.

Thanks to its shorter barrel length and compact frame, the AR9 is an excellent option for home defense. The AR9’s smaller size allows users to easily maneuver in tight spaces, such as hallways or doorways, without sacrificing too much accuracy or power. Its compact design also makes it easier to store and transport, perfect for those who need a firearm that's easily accessible in a crisis.

As with all AR-style platforms, the PSA AR9 is highly customizable. From handguards to stocks to triggers, you can fine-tune the rifle to suit your needs. There are also a wide range of aftermarket parts and accessories available, which allows you to enhance performance, aesthetics, and functionality.

When choosing the AR9, it's important to understand the key features and components that make it unique. Below are some of the highlights:

The blowback action is a defining feature of the PSA AR9. Instead of using a gas-operated system, which is common in AR-15s, the PSA AR9 relies on the energy generated by the expanding gases to push the bolt back. This makes the system simpler and more reliable for lower-pressure cartridges like the 9mm.

The AR9 is designed to be compatible with Glock-style magazines, which are among the most widely used magazines in the world. This compatibility makes it convenient for Glock owners to use their existing magazines in the AR9, streamlining the shooting experience. PSA also offers versions of the AR9 that can accept Colt-style SMG magazines, giving you additional options depending on your preference.

Like all AR-15-based firearms, the lower receiver of the AR9 is completely modular, which means you can customize the stock, trigger, and grip according to your preferences. The lower receiver also includes an ambidextrous safety selector and other ergonomic features that enhance ease of use.

The AR9 is available in multiple barrel lengths, from short barrels ideal for AR9 pistols to longer configurations for more precise shooting at longer ranges. Most configurations feature barrels between 8 and 16 inches. The shorter barrels provide better maneuverability, while the longer barrels offer increased velocity and accuracy, making them ideal for competition or tactical purposes.

We here at Gorilla Machining offer a variety of free-floating handguards that improve both the look and performance of the AR9. These handguards allow for easy attachment of accessories like optics, weapon lights, and vertical grips. The M-LOK and KeyMod mounting systems are commonly found in AR9 models, allowing for secure, customizable placement of your accessories.

While the PSA AR9 is highly regarded, it’s important to compare it with other popular pistol-caliber carbines on the market. One of the biggest advantages of the PSA AR9 over competitors is its affordability. Palmetto State Armory is known for offering excellent value without sacrificing quality, making the AR9 a great entry point for those new to PCCs or for those on a budget.

In comparison to other PCCs like the Ruger PC Carbine or CZ Scorpion EVO 3 S1, the PSA AR9 is typically priced lower while offering similar performance. The AR9 also benefits from the familiar AR-style platform, making it easier for owners of AR-15s to transition to the AR9.

The compact and reliable design of the PSA AR9 makes it an ideal home defense firearm. With minimal recoil, fast follow-up shots, and manageable power, it can be a better choice than a standard rifle or shotgun in tight quarters. Its short length also means it’s easy to store and quickly deploy in an emergency.

Many competitive shooters use pistol caliber carbines like the PSA AR9 for sports such as USPSA (United States Practical Shooting Association) and 3-Gun competitions. The 9mm round allows shooters to quickly hit targets at a variety of distances without worrying about excessive recoil. Its customizability allows competitors to adjust the gun to their shooting style, making it a popular choice for competition.

With its affordable ammunition and minimal recoil, the PSA AR9 is a fun and cost-effective option for casual shooting. Whether you're practicing at the range or participating in a recreational shooting event, the AR9 provides plenty of enjoyment while keeping costs low.

The PSA AR9 is a solid, reliable, and highly customizable option for anyone looking for a 9mm pistol caliber carbine. Whether you’re using it for home defense, competition shooting, or simply for range practice, the AR9 offers excellent performance at an affordable price. Its compatibility with Glock magazines, along with the modular AR platform, makes it a versatile choice for both new and experienced shooters alike. With its easy-to-control recoil, great accuracy, and potential for customization, the PSA AR9 stands as a strong contender in the PCC category. If you're looking for a high-quality carbine or pistol chambered in 9mm, this firearm is certainly worth considering.