AR15.Com Archives
 Difference between AR15 and M16
rsmith0399  [Member]
8/2/2010 8:21:46 PM

I am new to AR's and I was wondering what the difference is between an AR15 and an AR16. By that I mean does anyone have an y photos that show an AR15 BCG and an AR16 BCG, etc....

I have search the interent, but I don't find anything. Is it illegal to post the details of a full auto firearm?

I am not trying to make one. I am just curious.

Title edited-Aimless
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Mach  [Team Member]
8/2/2010 8:25:10 PM


ETA:

Read Here
die-tryin  [Team Member]
8/2/2010 8:25:41 PM
Dont you mean M16 versus AR16?

The M16 has more meat on the back end of it, thats pretty much it.

Alot of use the M16 BCG for the extra mass, it slows down cycle rate and in theory helps with accuracy when doing quick follow up shots, etc.

Both are perfectly legal to own and put in your AR. Alot of civie colts had them from the factory. But you CAN NOT have any other M16 Fire control parts, not a single solidtary item other than BCG.
rsmith0399  [Member]
8/2/2010 8:34:54 PM
Thanks! That'sthe kind of info I am looking for. But what about all the other parts?
Forest  [Moderator]
8/2/2010 8:38:47 PM
Originally Posted By rsmith0399:

I am new to AR's and I was wondering what the difference is between an AR15 and an AR16. .


I'm thinking you mean M-16 in which case it has been answered.

If you really mean AR-16; well that is a .308 caliber semi-auto rifle with a completely different bolt carrier for it's piston based gas system. It's the 'big brother' of the AR-18/AR-180 (similar to how the AR-10/SR-25 are the big brothers of the AR-15).
rsmith0399  [Member]
8/2/2010 8:42:44 PM
M16
Sorry, I said I was new to AR's. I'm trying to learn.
die-tryin  [Team Member]
8/2/2010 8:44:51 PM
Originally Posted By rsmith0399:
Thanks! That'sthe kind of info I am looking for. But what about all the other parts?


What about them?

Someone else can explain the rest or try google. I can understand asking about BCG, but get sceptical when asked about "other" parts. Sorry , my TinFoil is tight tonite.

rsmith0399  [Member]
8/2/2010 8:52:09 PM
Sorry, Didn't know it was a big secret!
die-tryin  [Team Member]
8/2/2010 8:55:39 PM
Originally Posted By rsmith0399:
Sorry, Didn't know it was a big secret!


Its not, always curious though seeing low post count, etc etc.



paddymurphy  [Team Member]
8/2/2010 9:05:38 PM
Originally Posted By rsmith0399:
Sorry, Didn't know it was a big secret!


It ain't a secret. It is 5 years at an all expense paid federal resort where the activities include:Get the soap, get a poke. Shanking in the yard and midnight serabuttrape.

A full auto BC is acceptable. Start adding other FA FCG components and you are sitting in a place known as constructive intent.
rsmith0399  [Member]
8/2/2010 9:09:36 PM
I understand.

But I am the one that spent two weeks trying to find out if my M4 flash supressor had to be welded and/or pinned and welded.

Turns out it can be welded or pinned/welded. But if you ask a dozen local gunsmiths, 6 of them will tell you the pin doesn't have to be welded.

I was paranoid enough to just know I was going to get checked next time I went to the range and end up in jail.

Thanks for everyon's help. I did find a good source when I searched for M16 instead of AR16.
http://www.madwulf.com/AR15vsM16.htm

Like I said, I am just curious. I know revolvers, and 1911's. I know how they work and how to make them work better. I just want the same level of knowledge about the AR variants.
hotbiggun42  [Team Member]
8/2/2010 9:13:45 PM
Originally Posted By die-tryin:
Originally Posted By rsmith0399:
Thanks! That'sthe kind of info I am looking for. But what about all the other parts?


What about them?

Someone else can explain the rest or try google. I can understand asking about BCG, but get sceptical when asked about "other" parts. Sorry , my TinFoil is tight tonite.



he would need one of these also
Auto sear

This is the part that is the MG if that is your question . Damn i wish we could own them in Washington state it would be fun for a Curio.
Aimless  [Site Staff]
8/3/2010 5:34:02 PM

Originally Posted By rsmith0399:
I understand.

But I am the one that spent two weeks trying to find out if my M4 flash supressor had to be welded and/or pinned and welded.

Turns out it can be welded or pinned/welded. But if you ask a dozen local gunsmiths, 6 of them will tell you the pin doesn't have to be welded.

I was paranoid enough to just know I was going to get checked next time I went to the range and end up in jail.

Thanks for everyon's help. I did find a good source when I searched for M16 instead of AR16.
http://www.madwulf.com/AR15vsM16.htm

Like I said, I am just curious. I know revolvers, and 1911's. I know how they work and how to make them work better. I just want the same level of knowledge about the AR variants.
There's usually an extra hole in the lower receiver and a different trigger assembly in an M16, plus the carrier is an m16 bolt carrier, there are some bolt carrier designed so that they will work with an AR15, but not with an M16. M16s can either have a fully automatic setting, or have a burst setting instead.

There are drop in auto sears which work differently than regular military M16s

Civilian ownership (other than by dealer's and manufacturers) requires licensing from the BATF and spending a lot of money to obtain an M16. You can end up being charged with a crime if you own certain combinations of M16 parts, even if they are not assembled into a machinegun.

It's easier to just compare the schematics than for me to type it all out.

We get lots of morons on here who show up and immediately start trying to find out how to build an illegal machinegun. Which is pretty stupid since there are plenty of state and federal law enforcement agents with accounts on this site.

altopwescap  [Member]
8/3/2010 8:39:03 PM
"I just want the same level of knowledge about the AR variants."

Study, study, study. The more you read the more you learn. You have to forgive us, most of us knew the difference between a M-16 and an AR-15 going in.

That being said:

The M-16 is a military full auto assault weapon, an AR-15 is not. An AR-15 is a civilian deer rifle.
southerncross  [Member]
8/3/2010 8:57:58 PM
and please don't refer to your evil black rifle as an assault weapon. . . its a semi automatic sporting rifle.

assault rifles are outlawed.
Forest  [Moderator]
8/3/2010 9:00:54 PM
Originally Posted By southerncross:
and please don't refer to your evil black rifle as an assault weapon. . . its a semi automatic sporting rifle.

assault rifles are outlawed.


Please dion't make false statement such as the above. They may be heavily regulated but they are most definately not outlawed - a 30 second tour of our NFA section can confirm this.
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