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1/15/2007 7:49:34 AM EDT
Do you guys think its worth while to trade my like new Armalite M15A4 for a like new Colt M4. Just want to make sure I'm not cheating myself. And is the M4 really worth me trading for.
Thanks.
1/15/2007 7:52:00 AM EDT
[#1]
Not enough info, Jethro.
1/15/2007 8:00:50 AM EDT
[#2]
My friend has a LNIB Colt M4 and is willing to trade me straight out for my Armalite M15A4 rifle. I like the Armalite and curious would this be a good deal. My use for the M4 would be the same as my Armalite and thats varmints and target shooting. Also looking ahead at the possibility of another Automatic Weapons Ban in the future.
1/15/2007 8:02:29 AM EDT
[#3]
Be more specific. Which Colt model is it ? M4 is a military weapon.

Mike
1/15/2007 8:08:46 AM EDT
[#4]

Quoted:
Be more specific. Which Colt model is it ? M4 is a military weapon.

Mike


+1

That's what I was getting at.  And more specifics on the condition of the Colt.
1/15/2007 8:10:43 AM EDT
[#5]

Quoted:
Not enough info, Jethro.
+1
1/15/2007 8:14:46 AM EDT
[#6]
What is the Colt Model # M4 is not the correct designation for the rifle you describe.  The civilian model # will begin with either AR or LE (example  AR6601 or LE6920)
1/15/2007 8:20:56 AM EDT
[#7]
It's probably the civilian version of the M4. Unknown until tomorrow when I can look at the gun. Were both L.E. so I'm not sure if this was bought on the Colt L.E. Program, but I doubt it. Sorry for not having much info.
Thanks for any advice.
1/15/2007 8:25:00 AM EDT
[#8]

Quoted:
It's probably the civilian version of the M4.


Which one?

If it's the LE6920 or LE6921 with permanent muzzle device I'd say yeah take the trade!

If its the Colt 6400C I'd say no.
1/15/2007 8:25:02 AM EDT
[#9]
The civilian version of the M4 is the LE6921 which is a NFA weapon requiring a BATF Tax stamp.  It is highly unlikely that it is a 6921.  

Look at pictures of the weapons on Colts civilian website www.coltsmfg.com/cmci/rifles.asp or their military/law enforcement website www.colt.com/law/home.asp or at specialized armaments website www.specializedarmament.com/

to help determine the model look at the muzzle device and profile of the barrel.
1/15/2007 8:29:50 AM EDT
[#10]
If the Colt's not defective, I'd make the trade.  
1/15/2007 8:34:41 AM EDT
[#11]
The gun is basically new. My friend is just wanting a full size AR and that is why we were thinking of trading.
1/15/2007 8:37:47 AM EDT
[#12]
Sounds good to me.
1/15/2007 8:41:59 AM EDT
[#13]
Take the Colt...
1/15/2007 8:42:10 AM EDT
[#14]

Quoted:
If the Colt's not defective, I'd make the trade.  


If it's defective, ave him send it back to Colt to get fixed and then trade.  Tell him you will be nice and trade even, just for him.
1/15/2007 8:45:18 AM EDT
[#15]

Quoted:
The gun is basically new. My friend is just wanting a full size AR and that is why we were thinking of trading.


I'd go for it if it's an L.E. gun.  (Real flash hider - not the muzzle brake model)
1/15/2007 9:26:01 AM EDT
[#16]
I'd go for it if it wasn't Colt's "PC" version MT6400C. But if it is, it can be "de-nuetured"

Mike
1/15/2007 9:33:32 AM EDT
[#17]

Quoted:
I'd go for it if it wasn't Colt's "PC" version MT6400C. But if it is, it can be "de-nuetured"

Mike


yea but if the Armalite is already in the "unbanned" state, and the colt needs additional $$$ to get there... i'd keep the armalite...

i like deneutering the MT6400C's... it makes me feel good inside...
1/15/2007 9:49:44 AM EDT
[#18]
Forgive my ignorance but what is the deal with the MT6400C rifle. Seems alot of hatred for it.
By the way my Armalie is the 20" version no bayo lug.
1/15/2007 9:51:05 AM EDT
[#19]

Quoted:
Forgive my ignorance but what is the deal with the MT6400C rifle. Seems alot of hatred for it.


It's a neutered M4.

No Bayonet lug,
Permanently attached 'blast enhancer' (aka Muzzle Brake)
Faux Telestock (has the look, but does not collapse).
1/15/2007 9:57:09 AM EDT
[#20]

Quoted:

Quoted:
Forgive my ignorance but what is the deal with the MT6400C rifle. Seems alot of hatred for it.


It's a neutered M4.

No Bayonet lug,
Permanently attached 'blast enhancer' (aka Muzzle Brake)
Faux Telestock (has the look, but does not collapse).


i bought mine during the ban for $850... they are good rifles, but they don't have all the "evil" features of an M4, so you would have to buy the evil parts.

IIRC, the lowers are the only civilian colt rifle rollmarked "M4 Carbine"...  the LE6920's are marked "LE Carbine" or something similar...
1/15/2007 10:32:07 AM EDT
[#21]
6921 & 6933 are both marked M4
1/15/2007 10:39:34 AM EDT
[#22]

Quoted:

Quoted:
Forgive my ignorance but what is the deal with the MT6400C rifle. Seems alot of hatred for it.


It's a neutered M4.

No Bayonet lug,
Permanently attached 'blast enhancer' (aka Muzzle Brake)
Faux Telestock (has the look, but does not collapse).


But otherwise its the real deal. I'd swap even if it's an MT6400C.

Basically, you'd be swapping a full-length rifle for a carbine. If you want a carbine, I don't see a down-side to the trade based on the info at hand.
1/15/2007 11:02:08 AM EDT
[#23]

Quoted:
What is the Colt Model # M4 is not the correct designation for the rifle you describe.  The civilian model # will begin with either AR or LE (example  AR6601 or LE6920)



Mine says m4 carbine !
1/15/2007 11:10:33 AM EDT
[#24]

Quoted:
6921 & 6933 are both marked M4


the 6921/6933 are marked M4LE not M4 Carbine.

i just like being able to call my rifle an M4... not an "M4gery" or other crappy name...
1/15/2007 1:44:34 PM EDT
[#25]
You guy's have me confused now. Do I have to buy a new lower if this is the Civy model to be able to bayo lug. The stock will be easy to replace. Are these marked 223 or .556. My armalite says .556 is there really a difference.
More opinions please.
1/15/2007 1:48:03 PM EDT
[#26]

Quoted:
You guy's have me confused now. Do I have to buy a new lower if this is the Civy model to be able to bayo lug.

No you will need a new barrel if you want the Bayonet lug (about $400 for a new Colt barrel IIRC).  However if the carbine is from the 692x series it will have the lug.


The stock will be easy to replace.

And add to the cost.  While you can get buy with an $80 CMT, I'd think you'd rather keep it 'all Colt' so expect to double that...
1/15/2007 3:14:12 PM EDT
[#27]
do the trade a neutered COLT is still better than the Armalite

Chances are more likely than not that it's the 6920 anyway, unless i missed something
1/15/2007 4:19:32 PM EDT
[#28]
If it's a MT6400, it's still a good carbine and if that's what you want then do it. Just know that it will cost you $65 + to get a working collapsible stock (depending on which way you go) and another $65 dollars + shipping to send it to some place like ADCO to get the barrel threaded in order to install a real FH. I wouldn't worry about the Bayo lug unless you plan to go around bayoneting targets at the range.

Other then those 3 things, the MT6400 is pretty much the same as a LE6920. The only other differences is, the MT6400's lower is actually marked "M4" (if you care) and does not have the annoying "LEO Only" markings. The last thing is the current LE6920's come with an M16 (as opposed to a cut up AR15) bolt carrier.

Don't know the specs on your Armalite or what you paid for it but if his Colt is an MT6400 then it's a far trade if you are wanting to get a carbine. If his Colt is any of the current LE models then it's a great deal that you should jump on before he realizes his mistake!
1/15/2007 4:41:15 PM EDT
[#29]
My Colt 6400c has the sear block, which I understand the LE weapons do not.  Chrome lined chamber and bore, 1/7 twist and semiauto carrier.  The process of deneuterization is complete

1/15/2007 4:45:36 PM EDT
[#30]
Lots of great advice keep it coming.
Also why does Colt offer this rifle to civies without bayo lug and collapsible stock unlike every other company
1/15/2007 6:51:08 PM EDT
[#31]

Quoted:
My Colt 6400c has the sear block, which I understand the LE weapons do not.


All LE and civi Colts have this block in them. I don't call it a block as this section was never milled out in the first place on these guns.  The only guns that don't have this "block" are the full auto guns.
1/15/2007 7:06:27 PM EDT
[#32]

Quoted:
Lots of great advice keep it coming.
Also why does Colt offer this rifle to civies without bayo lug and collapsible stock unlike every other company


The 6400 was initially offered during the AWB, and Colt keeps it for states with AWB's like their home state of Connecticut.  Their civilian line has been 'politically correct' in one form or another since before the first AWB.
1/16/2007 6:08:09 AM EDT
[#33]
I looked at the gun this morning and it is a MT6400c. I really like the looks of the gun as well as fit and finish. I think I may proceed with the deal. Can I still shoot .556 in this gun even though it is marked 223 on receiver. Am I able to loosen allen bolt/pin on the stuck and collapse it that way.
1/16/2007 6:27:12 AM EDT
[#34]
Absolutely. It's a 5.56 chamber despite it's rollmarks. I don't think you'll be disappointed.



As far as the stock, I'm not sure. Scottryan or ekie could probably answer that question.
1/16/2007 6:52:38 AM EDT
[#35]

Quoted:
I looked at the gun this morning and it is a MT6400c. I really like the looks of the gun as well as fit and finish. I think I may proceed with the deal. Can I still shoot .556 in this gun even though it is marked 223 on receiver. Am I able to loosen allen bolt/pin on the stuck and collapse it that way.


Yes....5.56 and .223 will work in it. If you look at the barrel stamp near the muzzle, it is stamped 5.56, despite the .223 markings on the lower receiver.  The muzzle brake is slip fitted and pinned on, unless they changed things since I bought mine (I have 2, actually).

Knock out those 2 cross pins and you can slip the muzzle brake off without tools.  I'm happy with it, as is. Aesthetically, having an A2 type flash suppressor probably isn't going to be a big priority for me in the future.

The faux collapsible stock won't go any further down. It is solid about 1/2 way back. The good news is that you got it with a M4 length spring and H2 buffer already installed. You will only need to get a new castle nut, a mil-spec buffer tube (I went with LMT's 5 position, you can also get Colt, etc.) and whatever stock design (I went for an identical  M4 stock from LMT). You can also change out the receiver end plate if you prefer a single point sling attachment type.

While I'm in NY, I can't have the collapsible stock installed, but I have made the change several times since Sept '05 while home on leave, JUST BECAUSE I CAN!! It took no more than 15 minutes, with the right tools. The fixed length of pull was fine for me, but my 13 year old son likes to shoot it as well, so having the adjustable feature is nice.

The first time, I did dremel cut the staking on the castle nut to get it loose. and since then, loctite has been more than adequate to hold it.  There is a little spring under the receiver end plate that will fly out if you aren't careful. It holds tension on the rear takedown pin, so you will need it.

If you want a bayonet lug, you can swap the front sight base while the muzzle brake is off. I haven't had much need to conduct very many bayonet charges since boot camp in '84, so I haven't changed that out on mine.
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