FN 5.7×28mm

FN 5.7×28mm
5.7×28mm sporting cartridges. From left to right: SS195LF, SS196SR, and SS197SR.
TypePistol, personal defense weapon
Place of originBelgium
Service history
In service1990–present
Used by40+ nations; see:
Wars
Production history
Designer
  • Jean-Paul Denis (SS90)[4]
  • Marc Neuforge (SS90)[4]
Designed
  • 1986–1990 (SS90)[5]
  • 1992–1993 (SS190)[6]
ManufacturerFN Herstal
Produced
  • 1990–1993 (SS90)[6]
  • 1993–present (SS190)[6]
VariantsSee Varieties
Specifications
Case typeRebated, bottleneck
Bullet diameter5.70 mm (0.224 in)
Land diameter5.53 mm (0.218 in)
Neck diameter6.38 mm (0.251 in)
Shoulder diameter7.95 mm (0.313 in)
Base diameter7.95 mm (0.313 in)
Rim diameter7.80 mm (0.307 in)
Rim thickness1.14 mm (0.045 in)
Case length28.90 mm (1.138 in)
Overall length40.50 mm (1.594 in)
Case capacity0.90 cm3 (13.9 gr H2O)
Rifling twist228.6 mm (9.00 in) 9 in)
Primer typeBoxer Small Rifle
Maximum pressure345.00 MPa (50,038 psi)
Ballistic performance
Bullet mass/type Velocity Energy
23 gr (1.5 g) SS90 AP FMJ (prototype) 850 m/s (2,800 ft/s) 538 J (397 ft⋅lbf)
31 gr (2.0 g) SS190 AP FMJ 716 m/s (2,350 ft/s) 515 J (380 ft⋅lbf)
27 gr (1.7 g) SS195LF JHP 777 m/s (2,550 ft/s) 528 J (389 ft⋅lb)
40 gr (2.6 g) Elite ProtecTOR 717 m/s (2,351 ft/s) 665 J (490 ft⋅lb)
28 gr (1.8 g) Elite Ultra RapTOR 933 m/s (3,060 ft/s) 789 J (582 ft⋅lb)
Test barrel length: 263 mm (10.4 in) for bullets 1-3, 406 mm (16.0 in) for bullets 4-5.
Source(s): [7][8]

The FN 5.7×28mm (designated as the 5.7×28 by the C.I.P.[7] and FN 5.7×28mm NATO[9]) is a small-caliber, high-velocity, smokeless-powder, rebated, non-tapered, bottleneck, centerfire cartridge designed for pistols and personal defense weapons (PDW) uses, manufactured by FN Herstal.[10] It is similar in length to the .22 WMR and .22 Hornet.[10] Unlike many new cartridges, it has no parent case; the complete package was developed from scratch by FN.

The 5.7×28mm was developed in conjunction with the FN P90 PDW and later the FN Five-seven pistol in response to NATO requests as a replacement for the 9×19mm Parabellum cartridge.[11][12] In 2002 and 2003, NATO conducted a series of tests to find a replacement.[12] The tests compared the relative merits of the 5.7×28mm cartridge and the 4.6×30mm cartridge, which was created by Heckler & Koch as a competitor to the 5.7×28mm.[12] The NATO group subsequently recommended the 5.7×28mm cartridge, citing superior performance in testing, but the German delegation objected and the standardization process was halted[12] until 2021 when it was officially adopted as a NATO standard Standardization Agreement (STANAG) 4509.[13]

By 2006, FN's 5.7×28mm firearms—the P90 PDW and Five-seven pistol—were in service with military and police forces in over 40 nations throughout the world.[14] In the United States, 5.7×28mm firearms are currently used by numerous law enforcement agencies, including the U.S. Secret Service.[15][16]

In addition to being used in the FN P90 and FN Five-seven firearms, the 5.7×28mm cartridge has subsequently been used in a number of other weapons, such as the AR-57 and FN PS90 carbines.[17][18] Excel Arms has developed four firearms chambered in 5.7×28mm, MasterPiece Arms offers three different firearms in 5.7×28mm.,[19][20] and CMMG offers several of its AR-Style Banshee firearms in 5.7x28.[21] As of December 2019, Ruger offers its Ruger-57 semi-automatic pistol chambered in this cartridge.[22] January 2021 saw the announcement by Kel-Tec of the P50 handgun, which uses 50 round P90 magazines. Palmetto State Armory introduced its Rock 5.7 pistol in January 2022;[23] it became available for purchase in May 2022.[24] In January 2023, Smith & Wesson introduced the M&P 5.7 gas assisted pistol.[25] In January 2024, TİSAŞ introduced the PX-5.7, the first Turkish-made 5.7x28 pistol.[26] In 2025 Kel-Tec announced the PR57, a top loading rotary barrel pistol.

The 5.7×28mm cartridge itself is produced in a number of varieties, two of which—the SS195LF and SS197SR—are currently offered by FN to civilian shooters.[17]

  1. ^ "Special Forces: Tout Sauf des Rambo". La Libre Belgique (in French). March 25, 2006. Archived from the original on February 22, 2012. Retrieved February 6, 2010.
  2. ^ Harris, Byron (March 16, 2009). "Texas is arming Mexican drug cartels". Dallas Morning News. Archived from the original on August 15, 2010. Retrieved April 27, 2010.
  3. ^ Fux, Eric (April 21, 2011). "Bericht van het front in Libië" (in Dutch). De Redactie. Archived from the original on May 1, 2011. Retrieved May 2, 2011.
  4. ^ a b Cite error: The named reference gunzonetimeline1986 was invoked but never defined (see the help page).
  5. ^ Díez, Octavio (2000). Armament and Technology: Handguns. Barcelona: Lema Publications, S.L. ISBN 9788484630135.
  6. ^ a b c Cite error: The named reference gunzonetimeline1990 was invoked but never defined (see the help page).
  7. ^ a b "C.I.P. TDCC datasheet 5,7 × 28" (PDF). Archived (PDF) from the original on 2020-09-18. Retrieved 2018-01-10.
  8. ^ "PS90 USG 5.7x28mm Semi-Auto Carbine from FNH-USA". May 27, 2009.
  9. ^ "New NATO Caliber - FN Herstal's 5.7x28mm -". 8 March 2021. Archived from the original on 9 March 2021. Retrieved 9 March 2021.
  10. ^ a b Forker, Bob (May 28, 2008). "The 5.7×28 FN". Guns & Ammo. Archived from the original on 2010-01-02. Retrieved October 19, 2009.
  11. ^ Miller, David (2001). The Illustrated Directory of 20th Century Guns. London: Salamander Books Ltd. ISBN 9781840652451.
  12. ^ a b c d Oliver, David (2007). "In the Line of Fire". Global Defence Review. Archived from the original on October 16, 2006. Retrieved October 19, 2009.
  13. ^ "NATO Standardizes FN's 5.7x28mm Caliber" (Press release). McLean, Virginia: FN America. 1 March 2021. Retrieved 14 June 2022.
  14. ^ Francotte, Auguste; Claude, Gaier; Robert, Karlshausen, eds. (January 2008). Ars Mechanica – The Ultimate FN Book. Vottem: Herstal Group. ISBN 9782874158773.
  15. ^ Wood, J.B. (26 June 2009). "FNH USA Five-seveN Pistol 5.7×28mm". Tactical Life. Archived from the original on February 17, 2012. Retrieved October 18, 2009.
  16. ^ Baddeley, Adam (May 21, 2003). "NATO Delays Personal Weapon Choice". Jane's Defence Weekly - Infantry Equipment (ISSN 0265-3818), p 30.
  17. ^ a b "FNH USA Products – 5.7x28mm Ammunition". FNH USA. 2012. Archived from the original on September 4, 2012. Retrieved August 31, 2012.
  18. ^ Crane, David (August 11, 2008). "AR Five Seven (AR-57): 50-Shot 5.7×28mm AR-15 Carbine". Defense Review. Archived from the original on October 6, 2009. Retrieved October 19, 2009.
  19. ^ "New Models X-5.7R and X-5.7P". Excel Arms. 2010. Archived from the original on November 22, 2010. Retrieved October 27, 2010.
  20. ^ "New MasterPiece Arms MPA 5.7x28mm Series Pistols". AmmoLand. June 25, 2012. Archived from the original on November 5, 2021. Retrieved July 21, 2012.
  21. ^ "Pistols and SBRs Archives". CMMG Inc. Archived from the original on 2020-06-17. Retrieved 2020-06-16.
  22. ^ "Tested: Ruger-57 Pistol". American Rifleman. December 31, 2019. Archived from the original on January 2, 2020. Retrieved January 4, 2020.
  23. ^ "[SHOT 2022] PSA Shows off their 5.7 Rock Pistol and Some PSAKs". thefirearmblog.com. 18 January 2022. Archived from the original on 19 January 2022. Retrieved 1 June 2022.
  24. ^ "Now Available: The Palmetto State Armory 5.7 Rock Pistol". thefirearmblog.com. 13 May 2022. Retrieved 1 June 2022.
  25. ^ "An Official Journal of the NRA | First Look: Smith & Wesson M&P 5.7 Pistol". Archived from the original on July 10, 2024. Retrieved July 7, 2024.
  26. ^ "Review: Tisas PX-5.7 Pistol". Retrieved July 15, 2024.
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