AR15 vs M4A1


Firearm & Gun Forum - FireArmsTalk.com > Long Guns > Auto & Semi-Auto Discussion > AR-15 Discussion > AR15 vs M4A1

Reply
 
LinkBack Thread Tools Display Modes
Old 07-13-2007, 03:27 PM   #1
Feedback Score: 0 reviews
 
Join Date: Jul 2007
Posts: 6
Default AR15 vs M4A1

What are the primary differences between an AR15 and a M4A1?



__________________
Rambo1984 is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 07-13-2007, 09:51 PM   #2
Feedback Score: 0 reviews
 
Join Date: Jul 2007
Location: Wolf Creek,MT
Posts: 212
Liked 5 Times on 5 Posts
Likes Given: 1

Default

Well, which AR15 would help. Mainly the semi-auto and Full auto capability.

Outside of having the rifle be an SBR and paying the tax, the AR15 would be no shorter than 16 inches, and a real M4 is usually 14 inches, or sometimes 11.5 inches.

That is the baiscs. The M4 has a particular barrel profile, but you can order that as well for you AR15.



__________________

-Bidah

Bidah is offline  
 
Reply With Quote
Old 08-07-2007, 05:23 AM   #3
Feedback Score: 0 reviews
 
Join Date: Aug 2007
Posts: 60
Default

Military wise:

M16: 3 round burst, 20" barrel, fixed A2 stock, different barrel profile.
M4: full auto, 14.5" barrel, collapsible stock, M4 barrel profile for the attachment of an M203.

Civilian world nothing other than barrel length, gas system and stock.

__________________
Etho is offline  
 
Reply With Quote
Old 08-15-2007, 07:05 PM   #4
Feedback Score: 0 reviews
 
Join Date: Aug 2007
Posts: 169
Liked 4 Times on 3 Posts
Likes Given: 3

Default

An M4A1 is an AR15, but an AR15 may or may not be an M4A1.

__________________
RMTactical is offline  
 
Reply With Quote
Old 08-30-2007, 08:09 AM   #5
Feedback Score: 0 reviews
 
Join Date: Aug 2007
Posts: 129
Default

Quote:
"An M4A1 is an AR15, but an AR15 may or may not be an M4A1."
Only in the broadest sense...
I sure don't include an M-4 as an AR-15...

AR-15 is a semi-automatic civilian rifle that was occasionally used by the military in the mid 60's.
The AR-15 was designed to fire the .223 Remington round.

An M-4 is a purpose designed & built military weapon.
It is fully automatic. It has fundamental design changes away from the AR-15 format.
It fires the Military/NATO 5.56x45mm round
(and shouldn't be confused with the civilian .223 Remington round).

The M-4 shares less with it's design parent, the AR-15, than any variant to date, and should not be confused with the old standard AR-15.


__________________
AR Hammer is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Ak-47 or Ar15 TacticalMan Auto & Semi-Auto Discussion 48 06-07-2009 01:40 AM
AR15 H Bar jrdar15 AR-15 Discussion 1 08-09-2008 05:45 PM
M4A1 Legality Rambo1984 Auto & Semi-Auto Discussion 3 05-31-2008 04:00 AM
Ar15 huntman1412 Gunsmithing Forum 4 05-14-2008 11:35 PM