How many different calibers of ARs do you have?

[LittleLebowski]

Not counting my 15/22 since it only looks like an AR.

5.45
5.56
6.5 Grendel
.300BO

[HeavyDuty]

Three.

5.56
9mm
22LR built with real AR components

[Jager]

.308
5.56
300 BLK

[rd62]

3 ARs of various configurations in 5.56
1 9mm pistol build in perpetual process

[Clusterfrack]

5.56
6.5 Grendel
.300 BLK

[DDTSGM]

5.56
7.62
300BO
6.5Grendel
9mm
.22LR

[BobM]

.22 lr, .223, .300BO, and.308.

[mmc45414]

Just came up from the basement where I was cutting down some 300BO...

5.56
300BO
9mm

So far....

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[Totem Polar]

.300BO.

https://media.giphy.com/media/KanqCs2oHuzKYCXSXo/giphy.gif

[ranger]

5.56
223 Wylde (20 inch target upper - 8 twist)
224 Valkyrie
6.5 Grendel
6.8 SPC
300 BO
5.45 (bought bunch of mil surplus 7N6 way back when it was dirt cheap)
9mm
Just need barrel for the 6mm ARC upper

[Duelist]

Two:
5.56 and 6.8. Wouldn’t be adverse to getting out of the 6.8.

[Norville]

Three:

9mm
300 BO
And 5.56

[YVK]

5.56 and 300 BO. Dunno if my SIG MPX PCC counts, with its gas system and all.

[shane45]

5.56
308
260 rem
300Blk

[Rex G]

Just 5.56 NATO and .300 AAC/BLK. My only .300 weapon is my only AR pistol, which might minimize the chance of getting things mixed-up.

[Wake27]

5.56 and .22LR and pretty happy with it. I went through a phase in the last two years where I consolidated calibers as much as possible because its easier to stockpile. 12g, 22lr, 5.56, 9, are my only real calibers. I have an M1 and some boxes of .30-06 but don't really count that. I don't hunt big animals so my BCMs, KACs, and Hodge with 75-77gr stuff should be adequate.

[5pins]

9mm
5.56mm
6.5 Grendel

[farscott]

Two: 5.56 and 6.8 SPC II

[ffhounddog]

A few 5.56, 1 9mm sbr, and 1 .308.

Sig 522. In fact I need more mags.

I wanted to get into Grendal or 7.62x39 but have not gotten it. Been focused on long range shooting with my Begara.

[That Guy]

Just the one 5.56mm.

[TWR]

22 LR
5.56

I’ve had a 9mm and a 308 but both were long ago.

[Screwball]

5.56mm/.223 Wylde
.22 LR
.410 (2.5”)
.45 ACP

And hopefully soon, 9mm.

[Nephrology]

Just 5.56

[Cookie Monster]

Another vote of just 556.

If I had to do it over and I realized the lack of shooting after having kids I would of hit the 300blk.

[MichaelD]

Just 5.56, currently.

[LOKNLOD]

5.56
6.5 Grendel
.300 BLK

This.

[Lex Luthier]

5.56 for now.

[SeriousStudent]

.22
5.56
7.62x39
300BLK
6.5 Creedmor
7.62
9mm

Geez, I need to slow down.

[breakingtime91]

556, want to add a 22.

[ranger]

5.56
223 Wylde (20 inch target upper - 8 twist)
224 Valkyrie
6.5 Grendel
6.8 SPC
300 BO
5.45 (bought bunch of mil surplus 7N6 way back when it was dirt cheap)
9mm
Just need barrel for the 6mm ARC upper

Forgot the 350 Legend upper in back of safe - went to Ohio last year for deer season and they have this "straight wall" hunting rifle rule.

[mmc45414]

Forgot the 350 Legend upper in back of safe - went to Ohio last year for deer season and they have this "straight wall" hunting rifle rule.That is probably the next one I will add. Starting to consider hunting more, am in Ohio.

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[ranger]

That is probably the next one I will add. Starting to consider hunting more, am in Ohio.

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35o Legend upper is "easy" solution if you already have AR lower.

[Shawn Dodson]

5.56
.25-45 Sharps
6.8 SPC
.308 Winchester

[rcbusmc24]

5.56
.300 blk
.22 lr
.308
9mm

[CleverNickname]

5.56
.300 blk
.22 lr
.308
9mm

Ditto. The only other caliber I'd like to get would be a 12 gauge Genesis Arms AR10 (https://www.genesisarms.com/), but I think that would be on the stupid guns I want to own (https://pistol-forum.com/showthread.php?44820-Stupid-Guns-You-Want-to-Own-Panic-Edition) list more than anything else.

[Sensei]

Lots and lots in 5.56
2 in 308
1 in 300 blk (3 if you count my MCX and rattler)
1 in 6.8 spc

[TGS]

Just 5.56.

[SecondsCount]

5.56
5.56 with a 22LR conversion kit
9mm

I am considering a 6ARC because I already shoot a lot of 6mm stuff.

[rob_s]

5.56and 9mm.

I have a 6.8 upper that I can’t seem to give away. Upper, mags, and some ammo that I list on here from time to time but I guess it’s a “dead” caliber or there’s something wrong with my upper that I’m unaware of.

[Doc_Glock]

Multiple 5.56
One .22
One 300 BLK

[Trigger]

.22
223
223AI
224 Predator
6.5 Grendel
300BLK

[P.E. Kelley]

Hmmm.
22LR
9mm
45acp
223
224Valk
6CM
6.5CM
300BO
308

[O4L]

5.56and 9mm.

I have a 6.8 upper that I can’t seem to give away. Upper, mags, and some ammo that I list on here from time to time but I guess it’s a “dead” caliber or there’s something wrong with my upper that I’m unaware of.I wish I had the funds for it. I've been trying to scrape up enough since you posted it for sale the last time. It hasn't been a good year for gun or ammo purchases on my tight budget.

[Duelist]

5.56and 9mm.

I have a 6.8 upper that I can’t seem to give away. Upper, mags, and some ammo that I list on here from time to time but I guess it’s a “dead” caliber or there’s something wrong with my upper that I’m unaware of.

I think the 6.8 has a lot going for it, but it’s really a specialty caliber nowadays being that there isn’t any real military support or use, so hunting seems to be its most practical niche. Pretty much any well-made upper with reasonable loads should be effective on deer and like-sized animals to at least 300 yards. A lot of guys on the 68forum use it for deer, hogs, coyotes and other varmints, and a guy I know took a full-grown mountain lion at over 350 yards with one shot. Some have even used it for elk with similar success, so it is a capable round. .270 Short, you might call it.

I built my upper with a 16” ARP Recon barrel when my scrawny 13yo couldn’t hold up anything longer or heavier than an AR carbine, and it’s an accurate upper that he shot well, but he’s lost interest in hunting for now, and I never really cared too much about hunting with an AR, so it just sits in the back of the safe. Hence my own comment that I wouldn’t mind getting out of it myself.

Might have to drag it out and see what I can do with it.

[JRB]

A few 5.56 milspec/Colt builds and one Troy 308.

I'm strongly tempted by .300BO but the itch came way too late.

[WobblyPossum]

Just 5.56mm but I’d like to get a Sig Rattler in .300blk.

[Up1911Fan]

22LR
5.56
300BO

[Cory]

I have a single 5.56 rifle. And I'd like my next one to be 5.56 too, but more like my service rifle.

Honestly, most of my rifle knowledge comes from the service. I shot a fair amount of 5.56 and I feel comfortable with its bullet drop. Some of that is drastic overconfidence because I haven't had an AR out to any kind of distance in a few years. At the same time I'm not sure that learning a new caliber's normal flight and holdovers is really something I'm up for. I guess if I was going to get another caliber I'd just got for a .308 or something like that.

Of course if money was no option I'd have 2 more 5.56, a 300BO, and a 308.

[Jaywalker]

One 5.56, but I'm holding my son's 6.5 Grendel while he's overseas. I've considered having the 5.56 rebuilt as a 300 BLK.

[maximus83]

5.56
22lr
6.5 Grendel

[psalms144.1]

22 LR and 5.56 at this time. Eyes open for a PDW-ish 300 BO, at which point I'll likely dump the 5.56.

[Suvorov]

AR15 pattern just 223/556 and .22LR dedicated upper build. One I move from this GD state I will probably look into putting together an AR15 pattern gun suitable for Antelope and Mules.

AR10 pattern - just one in boring .308.