FNS 40 for Sale

Quick Look

The FNS 40 is a striker-fired pistol developed by FN America for law enforcement and civilian markets. Designed for quick target acquisition and ergonomic reliability, it balances stopping power with control in a full-size configuration. Though discontinued in favor of FN's 509 series, the FNS 40 remains a trusted choice among value-conscious shooters.

Why It's a Top Choice

• Reliable striker-fired system proven in law enforcement testing
• Chambered in .40 S&W for increased stopping power
• Ambidextrous controls for left- or right-handed shooters
• Integrated accessory rail for lights or lasers
• Textured grip and low bore axis for reduced muzzle flip

Key Variants

FNS 40 Longslide

Optimized for competition and precise shots with a 5-inch barrel for extended sight radius.

FNS 40 Compact

Ideal for concealed carry with a reduced frame and barrel length without sacrificing firepower.

FNS 40 LE

Law enforcement edition with night sights and additional magazines included from the factory.

Competitor Comparison Table

Feature	Fns 40	Glock 23	Smith & Wesson M&P40
MSRP	$599	$599	$569
Capacity	14+1	13+1	15+1
Weight (unloaded)	27.5 oz	23.7 oz	27 oz
Optics-ready	No	No	Select models
Trigger type	Striker-fired	Striker-fired	Striker-fired
Notable pro	Fully ambidextrous design	Widespread aftermarket support	Excellent ergonomics
Notable con	Limited aftermarket options	Lower capacity	Grip texture polarizing

Best Use Cases

• Home defense
• Law enforcement backup or duty weapon
• Concealed carry (Compact model)
• Range shooting and familiarization training
• Affordable .40 S&W platform for enthusiasts

FAQs

Can I convert the FNS 40 to 9mm?

No official conversion kit exists from FN; caliber swaps are not supported by the manufacturer.

What is the magazine capacity of the FNS 40?

The standard FNS 40 magazine holds 14 rounds of .40 S&W ammunition.

How does the FNS 40 compare to the FN 509?

The FN 509 is newer, optics-ready, and features upgraded grip textures and modular enhancements.