| ammo_ldv=+2
| ammo_c1=30%
| ammo_c2=28%| ammo_c3=27%
| ammo_a1=24%
| ammo_a2=20%
'''5.7x28mm''' is a type of [[ammunition]] for firearms. In real life, this cartridge is considered to be part of the Personal Defense Weapon category, a nebulous category of small, high-velocity cartridges intended for compact firearms. Their primary purpose is to defeat armor; therefore, this caliber is classified in the game as a <span style="color:#AA0000">'''(R)'''</span>ifle caliber, in order for it to have access to rifle-only projectile types and perform the way a PDW cartridge is intended.
Despite being in the <span style="color:#AA0000">'''(R)'''</span>ifle caliber category, magazines containing 5.7x28mm ammunition are treated as pistol magazines in [[load-bearing equipment]].
In real life, this cartridge was originally designed for the [[FN Herstal P90]] personal defense weapon. This was arguably the first purpose-built PDW. It entered in direct competition with HK's [[Heckler & Koch MP7A1|MP7]] and their own PDW cartridge, the [[4.6x30mm]].
== Base weapons ==
There are '''45''' base weapons chambered in this caliber.
'''[[Class 2 weapons]]:'''
* [[Excel Arms Accelerator MP-5.7]]
* [[FN Herstal Five-seveN]]
* [[Kel-Tec P50]]
* [[MasterPiece Arms MPA57SST]]
! Brand name !! Composition !! Available projectile types
|-
| Standard || Reg/SP || '''FMJ''' (1.0x)<br/><span style="color:#D1AE30">'''T'''</span> (1.1x)<br/> <span style="color:#0000CC">'''JHP'''</span> (31.0x5x)<br/> <span style="color:#CC0000">'''AP'''</span> (31.0x5x)<br/> <span style="color:#008800">'''SF'''</span> (1.5x2x)
|-
| Milsurp || '''Surp'''/SP || '''FMJ''' (0.25x)<br/><span style="color:#D1AE30">'''T'''</span> (0.275x)<br/> <span style="color:#CC0000">'''AP'''</span> (0.75x375x)
|}
{| class="wikitable" style="text-align:center;font-size:8pt" width="700"
|style="font-size:10pt" colspan=1112| Availability of '''{{PAGENAME}}''' as a Customs family chambering:
|-
| [[File:1911SS.png|noframe|50px]]<br/>1911SS || [[File:1911DS.png|noframe|50px]]<br/>1911DS || [[File:Blackhawk.png|noframe|50px]]<br/>Blackhawk || [[File:Redhawk.png|noframe|50px]]<br/>Redhawk || [[File:Glock-SF.png|noframe|50px]]<br/>Glock-SF || [[File:Glock-LF.png|noframe|50px]]<br/>Glock-LF || [[File:MP5.png|noframe|50px]]<br/>MP5 || [[File:AR-15.png|noframe|50px]]<br/>AR-15 || [[File:Ak.png|noframe|50px]]<br/>AK || [[File:AR-10.png|noframe|50px]]<br/>AR-10 || [[File:Rem700.png|noframe|50px]]<br/>Rem700 || [[File:BlackArrow.png|noframe|50px]]<br/>BA
|-
| [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]] || [[File:No_box.png|noframe|50px]]
|}
'''Minor services''':
* No weapons chambered in this caliber can be created through a Minor service.
[[Category:Ammunition]]