dbraves8

So what all calibers can I shoot out of the AR-15 with conversion kit or uppers? compared to the AR-10??

jwhite75

I have an AR-15 because I got a Colt 6721...at an amazing deal, and its a classic every gun owner should have. But I am a big fan of the .308 round. The next semi auto rifle I buy will be a AR-10 or a Springfield M1A.

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dbraves8

I am looking so far into the S&W M&P 15X-$1100shipped, Colt 6920-$1300 shipped, Colt 6940 I like as well for $1580 shipped all NIB

Urk 22

I just got a Colt 6920 and I love it. Its a good choice and thats not a bad price on it. I would say go for it.

dukalmighty

AR15 calibrAR-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
.357 Auto
.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

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dbraves8

what is the simple blow back operation is that just the cheap conversion kit??

Also I would like to get the 6920 but I want a heatshiled like the 6940 comes with whats a site where they have heat shields for ar with prices

tangoseal

D.Mighty where did you obtain this information. I am intersted in this as well. I would like to know for sure since I am buying an le 6920 tomorrow or the next day. If there are so many options available and the chamber can mathematically and by design support the different brass and calibers why do we not hear much about it. I would totally love to figure out how to shoot cheap 9mmx19mm pistol rounds through it. But how?

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dbraves8

how much are you paying for the 6920 pm me if you dont want to make it public

tangoseal

Ill send a PM. I do not want to go public out of respect for my friend/dealer. I will tell you that there are about 3 gunshops in Atlanta Area that have 6920s and at least one that had a 40 but I guarantee it will have been sold by the time you read this. Some people like that hand grip and flat top on that 40 model.

Here are my future mods Im going to get over the next 2 months or as available.

Some bulk packs of Milspec 5.56 - It's a colt after all.. she'll take it.
A few magazines that I already have from the military.
JP VTAC 9" smooth grip (use only the rails I need)
CMMG .22 conversion bolt, but subject to a ton more research first.
Green laser - gotta find which one I like or the guys/girls here recommend.
Taclight - Streamlight or surefire
Urban-ERT 1 point AR tactical Sling or something you guys recommend
Standard everyone gets EoTECH red laser dot sight.
Sometime in the future a regular luepold scope for deer hunting or long range shooting.

__________________
"I believe that the right of the citizen to keep and bear arms must not be infringed if liberty in America is to survive." - Ronald Reagan

dbraves8

can you shoot me a link to that smooth grip??