Number of calibers the AR-15 can be built into?

[BLACKTALON]

does anyone have a list of all the calibers a AR15 can be built into ?

 

[jimbobborg]

No, because the list is constantly growing. Did you check this thread? http://www.mdshooters.com/showthread.php?t=64816

 

[HappyCamper]

I would say more like what CAN'T you build one into? Be cool to have one in 7.62x54R ...

 

[jimbobborg]

I would say more like what CAN'T you build one into? Be cool to have one in 7.62x54R ...

Won't work in an AR-15, but there's an AR pattern rifle now in 30-06 and 300 WinMag, so there's that.

 

[BradMacc82]

I would say more like what CAN'T you build one into? Be cool to have one in 7.62x54R ...

AR10 in 54R??

Greg, not counting wildcat cartridges. There's a lot of options, and these are the ones off the top of my head....

.22lr
.204
.223/5.56
300blk
7.62x40 hrt
7.62x39
6.8spc
6.5grendel
.458 socom
.50 beo
9mm
.45acp

 

[kalister1]

I have fired a 50BMG AR platform rifle. It was a bolt action, side mounted box magazine upper pinned to an AR lower.

 

[MigraineMan]

If you're staying with an AR-15 lower, you'll be restricted by the size of the mag well. Cartridges longer than 45mm simply won't fit.

If you're just playing in the AR-style platform family ... yeah, pretty much "all of them."

 

[Caeb75]

17 HM2
10 MM
40 S&W
.222 REM
.222 REM MAG
50 AE
500 S&W
7.62X25


In addition to Bradmac's list, these are some others I have seen and/or fired. Tony Rumore has built some crazy stuff. I know he has done some others, but i haven't seen them.

 

[Inigoes]

AR10 in 54R??

3MM too short!

Noreen Firearms has some nice offerings

 

[LONGSHOT]

.22lr with a 200 plus drum.

 

[BradMacc82]

3MM too short!

Noreen Firearms has some nice offerings

Story of my life...

 

[BLACKTALON]

me and another guy a the shop were arguing over this topic becuase I told a customer there are so many options like 2500 lol so I am trying to get to that number to prove him wrong

 

[friendlyhippo]

You may have made a claim a bit larger than your britches can fit....

 

[Inigoes]

Make up some wildcat calibers. lol

 

[HappyCamper]

Make up some wildcat calibers. lol

Or just make up some more animals to go with calibers.... And Country variations... And don't forget extra adjectives

22 Bobcat
22 Lynx
22 Housecat
357 Barracuda
222 hawk
375 Chupacabre

303 Scottish
7.5x55 Norwegian

38 extremely special
38 Very Super
357 Magnum Plus
300 Brownout
458 Delta SOCOM

Or just go to CH4D and browse the obsolete caliber list of over 2000 calibers

 

[redsandman6]

how about .25-45 sharps

 

[Biggfoot44]

*IF* we limit to " and able to function as a selfloader " , you are limited primarily by COL and base dia . If I sat down and put my mind to it , I could tripple or quadruple Brad's list , and you would still have the possability of infinate Wildcats.

Dpending on how much you wish to limit yourself you could specify : 1. Offered by Class 7 as a complete firearm at some point in time OR offered as loaded ammo.2.Both complete firearms AND ammo. 3. Same as #2, but multiple sources. 4. Ctg offered in complete firearms AND SAAMI spec'd .


Field will consist of : 1. Every length of .223 based cases , every variation of shoulder angle/ moved , necked up and down. 2. X39 Russian head size , with same varriables. .30Rem ( aka 6.8SPC ) headsize , same variables . WSSM headsize , same variables . . And Beowulf based , and .450 based , and 9mm based , and .etc , etc , etc .

 

[erwos]

When you're talking about semi-auto functionality, you can do pretty much anything that fits in the magazine (which, IIRC, is something like 2.25" cartridge OAL). Single shot or bolt-action mag-fed... the limit is pretty much the moon.

 

[friendlyhippo]

When you're talking about semi-auto functionality, you can do pretty much anything that fits in the magazine (which, IIRC, is something like 2.25" cartridge OAL). Single shot or bolt-action mag-fed... the limit is pretty much the moon.

HK stainless mags are a hair over 2.3".

 

[Mike3888]

Check blackhole weaponry and mike dietech for wild cats. I'm sure there are lots