SponsoredFN Five Seven Price Guide: What to Pay & Current In-Stock Deals
Updated October 18, 2026
FN Five-seveN prices are the 5.7x28 pistol. MK3 MRD is the optic-ready generation. The ammunition is a separate shopping trip from 9mm.
What you are actually buying
The FN Five-seveN is a full-size but light pistol in 5.7x28. 20-round magazines are the standard. Ten-round magazines are the compliant SKUs. It does not take 9mm magazines. MK3 MRD guns are optic-ready. Earlier MK2 guns are not. A plate is still part of the MRD setup.
A delayed-blowback pistol built around the 5.7x28 cartridge. The magazine is a long double-stack of a small cartridge. Holsters are model-specific.
Variants worth separating
The USG and IOM are older. The MK2 updated the controls. The MK3 added the MRD optic cut and other changes. Ammunition is the ownership cost people forget, and it is a different cartridge from 9mm. This page does not invent an ammo price.
Who it suits
Someone who wants 5.7 specifically and will buy the matching ammunition. It is a bad impulse buy if you thought it was a high-capacity 9mm.
What to look for in a deal
MK2 versus MK3 MRD, magazine count, and whether the gun is the optics model. A 57-round ammo can is not the pistol. MK3 MRD is the optic gun. An older MK2 is iron sights. The wider in-stock set is on FN deals. If this size is wrong, the FN SCAR is the nearby model. The category board is handgun deals. The category buying guide is Best 9mm Pistols, Including Budget Picks.

Questions people ask
Which FN Five-seveN variants are actually different products?
The USG and IOM are older. The MK2 updated the controls. The MK3 added the MRD optic cut and other changes. Ammunition is the ownership cost people forget, and it is a different cartridge from 9mm. This page does not invent an ammo price.
Who is a FN Five-seveN a good fit for?
Someone who wants 5.7 specifically and will buy the matching ammunition. It is a bad impulse buy if you thought it was a high-capacity 9mm.
What should a FN Five-seveN deal include?
MK2 versus MK3 MRD, magazine count, and whether the gun is the optics model. A 57-round ammo can is not the pistol.
How do I know two FN Five-seveN cards are the same product?
MK3 MRD is the optic gun. An older MK2 is iron sights.


