FN 503 Review: Pros and cons of the 503

The FN 503 is a compact, single-stack 9mm pistol designed for concealed carry. It's manufactured by FN America, a well-respected firearms company known for producing high-quality firearms for law enforcement and military use. While the FN 503 has received positive reviews from many gun enthusiasts and professionals, there are also some downsides to consider. In this blog, we will discuss the pros and cons of the FN 503 to help you decide if it's the right firearm for you.


  1. Concealment: The FN 503's compact size and slim profile make it an excellent choice for concealed carry. It measures just 6 inches long and 4.6 inches tall, with a width of only 1.1 inches. This makes it easy to conceal in a variety of clothing options.

  2. Ergonomics: The FN 503 is designed for comfortable use, with an ergonomic grip and easy-to-reach controls. It features a low bore axis, which helps to reduce felt recoil and improve accuracy.

  3. Accuracy: Speaking of accuracy, the FN 503 is a very accurate firearm. It has a 3.1-inch barrel and a fixed, low-profile iron sight, which helps to improve accuracy and target acquisition. Many users report excellent accuracy at distances of up to 25 yards.

  4. Reliability: FN America has a reputation for producing high-quality firearms, and the FN 503 is no exception. It's built to last, with a rugged construction and high-quality components. Many users report flawless operation even after thousands of rounds.


  1. Capacity: The FN 503 has a capacity of just six rounds. While this is typical for a single-stack 9mm, it's still a downside for those who want more rounds for self-defense.

  2. Trigger: Some users report that the trigger on the FN 503 is heavy and difficult to pull. This can impact accuracy and make it harder to shoot quickly and accurately.

  3. Price: The FN 503 is not the most affordable option on the market. While it's a high-quality firearm, it may be out of reach for some buyers who are looking for a more budget-friendly option.

  4. Recoil: While the FN 503's low bore axis helps to reduce felt recoil, some users still report that the recoil is a bit harsh. This can make it harder to shoot accurately and quickly.

The FN 503 is a high-quality firearm that offers many benefits for concealed carry. It's small, lightweight, and accurate, making it an excellent choice for self-defense. However, it does have some downsides, including a low capacity, heavy trigger, high price, and significant recoil. Overall, the FN 503 is an excellent option for those who prioritize concealment and accuracy, but it may not be the best choice for everyone. As with any firearm, it's essential to consider your specific needs and preferences before making a purchase.

Order a holster for your FN 503 today.

FN 503 Review: Pros and cons of the 503