The FN America 5.7x28mm 40-Grain FMJ — sold under the FN GUNR line — is purpose-built training ammunition straight from the inventors of the 5.7 caliber, delivering match-ready consistency and outstanding value for high-volume range sessions.
- 40-grain full metal jacket bullet engineered for reliable, consistent performance downrange
- Brass case with Boxer primer for easy reloading and dependable ignition
- Extremely low felt recoil makes extended training sessions comfortable and productive
- Cycles reliably in all 5.7x28mm-chambered pistols and carbines without modification
- Velocity and accuracy comparable to the FN SS197SR sporting round
- Cost-effective 50-round box makes it the go-to choice for budget-conscious shooters
Who This Is For
This ammunition is ideal for owners of the FN Five-seveN, PS90, or any other 5.7x28mm-chambered firearm who want a reliable, affordable round for regular range practice. Whether you're a competitive shooter building trigger time or a new 5.7 owner learning the platform, FN GUNR training ammo lets you shoot more for less without sacrificing the feel of your defensive or duty loads.
Specifications
| Brand | FN America |
|---|---|
| Line | FN GUNR |
| Caliber | 5.7x28mm |
| Bullet Weight | 40 Grain |
| Bullet Type | Full Metal Jacket (FMJ) |
| Muzzle Velocity | ~1,655 fps (from 4.8" barrel) |
| Muzzle Energy | ~243 ft-lbs |
| Case Type | Brass |
| Primer Type | Boxer |
| Rounds Per Box | 50 |
| Application | Target / Training |
Frequently Asked Questions
Will FN GUNR 5.7x28mm ammo work in my FN Five-seveN or PS90?
Yes. FN America designed the GUNR line to cycle reliably across all 5.7x28mm-chambered firearms, including the FN Five-seveN pistol and the FN PS90 carbine. The 40-grain FMJ load feeds smoothly and functions with the same dependability you'd expect from factory FN ammunition.
How does FN GUNR compare to FN SS197SR for training purposes?
FN GUNR is engineered to closely replicate the felt recoil, velocity, and point-of-impact of the SS197SR sporting round, making it an excellent and more cost-effective substitute for high-volume practice. You can train extensively with GUNR and transition seamlessly to SS197SR for matches or carry without changing your sight picture or grip technique.
Is this ammunition reloadable?
Yes. FN GUNR 5.7x28mm ammunition features a brass case with a Boxer primer, which means the spent brass is reloadable for handloaders who want to extend the value of every round even further. The 5.7x28mm case is somewhat small and requires dedicated dies, but the brass is quality construction that holds up well to reloading.
- Caliber:
- 5.7x28MM
- Bullet Weight:
- 40 GR
- BulletType:
- FMJ
- Purpose:
- Range/Target
- Type:
- Pistol Ammunition
- Box Quantity:
- 50
- Case Quantity:
- 500
- Lead Free:
- No
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Reviews
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Good ammo
No issues in my AR 57. Fairly clean and no accuracy issues.