Without changing lower receivers, what calibers can fit in the AR-15 lower? I know .22LR and 9mm fit in it, but what else can it be converted to?
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Without changing lower receivers, what calibers can fit in the AR-15 lower? I know .22LR and 9mm fit in it, but what else can it be converted to?
6x47
7.62x39
6.8 SPC
204 Ruger
6.5 Grendel
30 Remington AR (not sure if is officially released or not)
various wildcats
There are so many:
22lr
5.56/.223
9mm
50AE
440 CORBON
300 Whisper (300 Fireball)
204 Ruger
20 Tactical
458 SOCOM
338 Spectre
50 Beowulf
499 Leitner-Wise
450 Bushmaster
6.8 SPC
6.5 Grendel
5.45x39 (.21 Ghenghis :cool:)
7.62x39
.223 WSSM
.243 WSSM
.25 WSSM
Wow, that's awesome. Thank you for listing all of these. Sounds like the AR-15 lower is a highly adaptable "gun".
7.62 will not fit in a normal AR lower. I don't know why people keep saying it.
Are there AR-styled rifles that do shoot 7.62? Yes. But do they use the same lower as a normal 5.56 AR? No.
This is why I mentioned it, but don't know if the magwell is somehow different, it doesn't look like it.Quote:
Originally Posted by justin_247
http://www.dpmsinc.com/firearms/firearm.aspx?id=24
Also:
http://www.del-ton.com/Comp_Magazine_p/mp1009.htm
http://www.del-ton.com/AR_15_Barrel_p/cv1033.htm
Also:
http://www.gunblast.com/Doublestar-762x39.htm
Not to mention:
http://www.gunbroker.com/Auction/Vie...Item=162287454
Or:
http://www.44mag.com/prodinfo.asp?number=CP76230
and more...
http://www.ar15.com/forums/topic.htm...f=364&t=181569
http://lh5.ggpht.com/_5ImLPsF5QbM/S0...0/s800/006.JPG
7.62x51 will not fit, but as far as I know 7.62x39 will.
-RD62
I think there was an article about a .410 upper out there ? Not 100% on that thou.
This list was posted on another forum:
AR-15, without bolt modification
.17 Remington
.20 Tactical
.204 Ruger
.221 Fireball
.222 Remington
.222 Remington Magnum
.223 Remington (5.56x45mm)
.223 Remington Ackley Improved
6x45mm
6mm Whisper
6.5mm Whisper
7mm Whisper
7mm TCU
.300 Whisper (.300/221, .300 Fireball)
.338 Whisper
AR-15, with bolt modification
223 WSSM
5.45x39mm (.21 Genghis)
243 WSSM
6mm PPC
6mm BR Remington
6.5mm PPC
6.5mm Grendel
25 WSSM
6.8x43mm SPC
.30 Herrett Rimless Tactical (6.8x43mm case trimmed to 41mm and necked up to .308; the 6.8mm version of the .300 Whisper)
7.62x39mm
.30 RAR
300 OSM
.357 Auto
.35 Gremlin (necked up 6.5 Grendel to 35)
.358 WSSM (various names, but all are some form of a WSSM necked up to 35 caliber, some are shortened to make them big game legal in Indiana)
.458 SOCOM
.50 Action Express
.50 Beowulf
AR-15 using a simple blowback operation
.17 HMR
.22 LR
.22 WMR
9x19mm
40S&W
10mm Auto
45ACP
AR-15 using a simple blowback operation
I don't know squat about the following: I have read that blowback systems using relatively heavy loads (e.g., 45 ACP, 9mm) will shorten the life of either a lower, upper, or both.
True?
As for all of those, which would be the best for hunting mule deer and quite possibly elk? Any, which ones?
6.8SPC would be good for mule and could work for Elk as well.Quote:
Originally Posted by Hotsauce
Quote:
Originally Posted by Hotsauce
This is the classic problem which I have struggled with for some time. The 6.8 spc will work for mulies out to 300 yards, but it is light for the task. The 6.5 Grendel does a bit better job, but is still lacking power for the long shots. The 7.62 x 39 likewise will take deer out to 300 yards, but is anemic for elk.
Sadly, the only rounds there which I personally would consider adequate for elk are the 458 Socom and the 50 Beowulf, but those are not long range cartridges. A pretty good elk rig would be an AR10 in .338 Federal. A good longer range deer rig would be an AR10 in 6.5 creedmoor. But I prefer the smaller dimensions of the AR-15, so it puts me in a quandry.