FN FN 503
Posted May 26, 2023
FN FN 503 is an incredibly unique and deceptively complex pistol. With its all-metal construction, oversized muzzle, and grooved slide, it looks like something out of a futuristic sci-fi film. However, it packs much more than its looks might suggest.
The FN 503 is a striker fired, semi-automatic handgun. It is a double/single action pistol, meaning that it can be fired in both semi- and full-auto modes when cocked. It is also available in two configurations: with and without a manual safety. The 503 is also equipped with an integral accessory rail that can be used to attach lights, lasers, and other tactical accessories.
The FN 503 is an excellent choice for gun enthusiasts looking for a high-quality pistol at an affordable price. Its all-metal construction packs a great deal of strength and durability. Its ergonomic and sculpted grip provides excellent control, while its oversized magazine release and slide catch make for fast reloads and lock up when needed.
The FN 503 is also equipped with a low-profile, three-dot sight system that provides an accurate sight picture in both bright and low light. Both the front and rear sights are adjustable and replaceable, allowing users to customize them to their preferred sight pictures.
In terms of accuracy, the FN 503 performs well. Its four-inch barrel and low-profile sights allow for precision shooting, even at extended ranges. It is designed with minimal recoil, which makes it extremely manageable for shooters of all experience levels.
The FN 503 can be broken down relatively easily for cleaning and maintenance. Its user-friendly take down lever allows for quick field stripping and the included cleaning rod lets you thoroughly clean all of the nooks and crannies.
Overall, the FN 503 is an overall excellent choice for pistol shooters looking for a strong, accurate, and user-friendly weapon. Its all-metal construction provides an exceptional level of durability and its ergonomic design ensures excellent control for rapid-fire shooting. Its low-profile sights provide an accurate sight picture and its adjustable trigger lets you customize it to your shooting style. As an added bonus, its easy field-strip feature allows for quick cleaning and maintenance. If you’re looking for a reliable and accurate handgun, the FN 503 is an excellent choice.
Pros & Cons
Pros:
• High quality, ergonomic and aesthetically pleasing design
• High-performance 9mm strikes with minimal felt recoil
• Polymer grip is comfortable and helps absorb shock
• Outstanding accuracy and reliable performance
• Uses reliable, popular GLOCK magazines
• Striker deactivation safety and user-friendly controls
• Other safety features such as trigger safety and firing pin block
Cons:
• May not be suitable for left-handed shooters due to controls positions
• Trigger pull is considered to be a bit on the heavy side, although it is adjustable
• Magazine capacity is only 7 rounds plus 1 in the chamber, which is not ideal for home defense scenarios
• Cost can be a bit high due to its FN branding
Who Should Buy
People who should buy the FN 503 include those who are looking for a lightweight, ergonomic semi-automatic pistol that offers a wide range of features and personalization options. The FN 503 is popular among shooters who want a slim, easy-to-conceal pistol and those who are comfortable with external safety and decocker leverage.
People who should not buy the FN 503 include those who are looking for a larger or heavier pistol for competition shooting, those who prefer a double-action/single-action trigger, or those who are accustomed to a firearm without external safeties. Additionally, size and cost could present an obstacle for some potential buyers.
Comparisons
| Feature | FN FN 503 | Ruger EC9s | Smith & Wesson M&P Shield 9mm | Sig Sauer P365 | Kahr CW9 |
|---|---|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm | 9mm | 9mm |
| Action | Striker-fired | Striker-fired | Striker-fired | Striker-fired | Striker-fired |
| Magazine Capacity | 8+1 | 7+1 | 7+1 | 10+1 | 7+1 |
| Barrel Length | 3.1" | 3.12" | 3.1" | 3.1" | 3.6" |
| Overall Length | 6" | 6" | 6.1" | 5.8" | 6" |
| Overall Width | 1.2" | 0.90" | 0.95" | 1.0" | 1.2" |
| Overall Height | 4.9" | 4.5" | 4.6" | 4.3" | 5" |
| Weight | 19.9 oz | 17.2 oz | 18.3 oz | 17.8 oz | 17.8 oz |
| Sights | Low profile | 3-Dot Fixed | White Dot with Option for Tritium | Steel Xray3 Night | White Bar-Dot |
| Trigger Pull | 6.2 pounds | 5.2 lbs | 6.5 lbs | 5.0 lbs | 6.0 lbs |
| Finish | Black Melonite | Blued | Matte Black | Nitron | Blackened |
| MSRP | $499 | $279 | $479 | $499 | $459.00 |
Features / Specs
• 9 mm semi-automatic
• 3.1 inch barrel
• Polymer frame
• Single-action trigger
• Striker-fired mechanism
• Standard accessory rail
• Fixed 3-dot sights
• Magazine safety disconnect
• Manual safety lever
• Extended slide release
• Ambidextrous magazine release
• Available in black or FDE
Popular Accessories
?
- Holsters: holsters are designed to be worn on the hip and provide a secure and comfortable fit for your FN 503.
- Magazines: FN 503 magazines come in a variety of sizes and capacities from 10 to 30 rounds.
- Sights: night sights, laser sights, and reflex sights are all popular upgrade options for the FN 503.
- Lasers: laser sights provide the shooter with important feedback regarding the point of aim, making for more accurate shots.
- Slings: slings provide comfortable carrying options that will protect both the shooter and the firearm.
- Grips: ergonomic textured grips can provide better recoil control and can look great as well.
- Flashlight: a light on the FN 503 can be a great accessory for low-light situations.
- Bipods: bipods provide stability, allowing the shooter to remain more accurate while shooting.
Accuracy
The FN 503 is a 9mm semi-automatic pistol designed to provide users with reliability and accuracy in a wide variety of shooting scenarios. With its low-recoil operation, this gun is designed to fire quickly, accurately, and with minimal muzzle jump. Its polymer construction and interchangeable parts make it highly desirable for self-defense and recreational users alike. When it comes to accuracy, the FN 503 feature a precision-crafted barrel and a low-weight steel slide that assures fast and accurate target acquisition. The overall accuracy of this firearm is very good, with the ability for the user to produce tight groups at close to intermediate-range. This gun is one of the most accurate pistols on the market today and should satisfy even the most demanding shooter.
