AR 15 Calibers

AR 15 Calibers

AR 15 CalibersAR 15 Calibers

AR 15 Calibers – The AR-15 platform is probably the most capable firearm with regard to firing the widest range of ammunition calibers with currently available components.  When we first began our research into the collection of “known” calibers, we found it was over 60 calibers.  After a couple years, we’re over 80, ……and growing.  Here are the calibers we’ve reached at the time of this post (87…so you don’t have to count them all):

.17 HM2 .30 Luger 6.5 WSSM
.17 HMR .30 Remington AR 6.5×6.8
.17 Remington .300 AAC Blackout (7.62×35mm) 6.5mm Grendel
.17 Practical .300 OSSM 6.5mm PPC
.17 Tactical .300 Whisper 6.5mm Whisper
.17 WSM .30-6.8 6.8mm Remington SPC II
.17-223 .35 Gremlin 6×47mm
.20 LBC .357 Magnum 6×6.8
.20 VarTarg .357 SIG 6mm AR
.204 Ruger .358 Winchester 6mm AR Turbo 40 Improved
.20-6.8 .358 WSSM 6mm BR Remington
.22 LR .375 Atlas 6mm Fat Rat
.22 WMR .375 Reaper 6mm Hagar
.220 Russian .375 SOCOM 6mm PPC
.221 Fireball .40 S&W 6mm Rat
.222 Remington .400 Corbon 6mm TCU
.222 Remington Magnum .41 Action Express 6mm Whisper
.223 Remington .45 ACP 6mm WOA
.223 Remington Ackley Improved .45 GAP 6x45mm
.223 WSSM .45 Super 7.62×25mm Tokarev
.22-6.8 .45 Winchester Magnum 7.62x39mm
.243 LBC .450 Bushmaster 7.65 Parabellum
.243 WSSM .458 SOCOM 7.65x21mm
.25 WSSM .50 Action Express 7mm TCU
.25-45 Sharps .50 Beowulf 7mm Whisper
.25-6.8 10mm Auto 9×19mm Parabellum
.264 LBC 12.7x42mm 9×21mm
.277 Wolverine 5.45x39mm 9mm Luger
.30 Carbine 5.56x45mm NATO 9mm Parabellum
.30 Herrett Rimless Tactical 6.5 WOA

The calibers listed above are listed individually, even though some are commercially known by many names (e.g.: 9mm Luger, 9mm Parabellum, 9x19mm).  They are listed separately because many of these “similar” cartridges are dimensionally different than their “similar” counterpart.  Sometimes those differences are enough that you should not confuse them (e.g.: 5.56 NATO and .223 Remington).

Please use our Contact form to let us know if there are calibers that we should add to the list.  We’d love to know more calibers that are out there for AR 15 Calibers.  Be sure to follow us on Facebook!!