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5.7x28
The FN 5.7×28mm (designated as the 5.7×28 by the C.I.P. and FN 5.7x28mm NATO) is a small-caliber, high-velocity, smokeless powder, rebated rim, bottlenecked centerfire cartridge designed for handgun and personal defense weapon (PDW) uses manufactured by FN Herstal. It is similar in length to the .22 WMR (5.7×27mm) and to some degree similar also to the .22 Hornet or .22 K-Hornet. 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 FN Five-seven pistol in response to NATO requests for a replacement for the 9×19mm Parabellum cartridge.
In 2002 and 2003, NATO conducted a series of tests with the intention of standardizing a PDW cartridge as a replacement for the 9×19mm Parabellum cartridge. 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. 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 indefinitely halted.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. In the United States, 5.7×28mm firearms are currently used by numerous law enforcement agencies, including the U.S. Secret Service.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. Excel Arms has developed four firearms chambered in 5.7×28mm, MasterPiece Arms offers three different firearms in 5.7×28mm., and CMMG offers several of its AR-Style Banshee firearms in 5.7x28. As of December, 2019, Ruger offers its Ruger-57 semi-automatic pistol chambered in this cartridge. January 2021 saw the announcement by Kel-Tec of the P50 handgun, which uses 50 round P90 magazines.
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.
https://palmettostatearmory.com/blem-psa-5-7-rock-optics-ready-complete-pistol-black.html
PSA will no longer accept or ship orders of restricted items to the state of Washington pursuant to HB1240, effective immediately.
Looking to sell my brand new psa rock and my ps90. Also wanting to sell the ammo I have stock piled.
15 boxes of 5.7x28. Asking $600 obo. Will trade for pistol/rifle/optics/other ammo. Looking for sig, trijicon, 9mm, 6.5 creedmoor, 556.
I have 138 rounds of factory 5.7 ammo
50 are blue tip. 88 are regular ball.
50¢ a round
Trade interests are Trex Ragnarok for m17 w x300
Safariland holster for m17, rmr, x300
5.56 ammo, 7.62x39 ammo
Ak furniture. TWS dogleg
1st Gen AR57 upper made right here in Auburn, WA. Uses 50rd p90 mags, fluted 16" barrel, ambidextrous side charger, ambi safety, 3.5# match trigger, photos show green stock but comes with matching black stock, also comes with a Burris 3x prism optic which has a really nice field of view and...
Selling my like-new FN Five-Seven with original case and two magazines. I'm the second owner, but as far as I can tell, neither of us shot it. It's an awesome gun, but I've never shot it and I need to fund other priorities.
The two mags will come unloaded.
PM for additional photo requests.
I...
FNH PS90 semi-auto rifle, chambered in 5.7x28, with a low pro micro optic mount and Primary Arms red dot. Comes with one extra magazine (where legal) and original picatinny high rise mount as well. Rifle is used but in good shape!
Not interested in any trades. Can meet at your FFL in the Puget...
So I just recently finally decided it was time to load some now that I have all of the components... Made 15 testers 40 gr. Vmax under 6.7 grs of accurate #7, small rifle primers,and trimmed once fired brass 1.130 after resize and simple green clean....as to try 2 not knock off the lacquer...
Ruger 5.7 excellent condition
only 3 magazines fired
Includes:
343 rounds part FN part federal American Eagle
One 20 round magazine, original case with contents
Carbon fiber IWB We the people holster w claw attachment
Buyer pays FFL background
*SPF*
Selling 10 new boxes of 5.7 ammo at $30 a box. This is less than I paid and less than the lowest price on ammoseek. Properly stored w/ desiccant packs. Total of 500 rounds.
Meet at Sportsman’s 185, or Hillsboro or surrounding area. Thanks for looking.
I've got some brass I don't have any use for and was offering it up for free locally if a reloader wants it.
30 rounds 30-06 and a loose box of 5.7
The 5.7 is deformed from an AR-57 upper.