Colt Lightweight AR6720 Carbine

This is my (very short) opinion on the Colt AR6720 Lightweight LE Carbine.

I constantly have people asking my opinion of what basic AR type rifle is best for them, to use for home defense and/or duty or patrol rifle use. ” Should I get a Colt or equivalent M4 type carbine?” Many who ask me these questions are my current coworkers, officers I have worked with in law enforcement and people I have trained or train with. One thing we can all agree on at Loose Rounds is Colt is the way to go when looking for a duty AR15 type carbine. Whether you want a plinker, a hard use training, home defense or duty carbine, the Colt AR15-A4 Lightweight LE Carbine is one of the best. As with all Colt rifles, you know you are getting the  (“Mil-Spec”) features and HPT/MPI testing of the important individual parts in the 6720.

Colt AR-15A4 Lightweight LE Carbine
Colt AR-15A4 Lightweight LE Carbine

I have used several variants of the AR15 platform for duty use in semi auto and full auto versions. These range from; The standard Colt M4 14.5″ Carbine (LE6921/ RO977), LE 16″ Carbine (LE6920), 11.5″ Commando (LE6933/R0933) and Government Carbine (AR6520). When I look at an all around purpose carbine, that can fill multiple roles, I think of the Colt AR6720. The Colt AR6720 has been out since 2009 and was a request by a distributor (Clydes) for Colt to update the 6520 Government Carbine. It is basically a 6520 Gov. Carbine (LW Gov barrel) with an M4 marked flat top upper with M4 feed ramps.

Colt AR6720 Light weight LE Carbine
Colt AR6720 Lightweight LE Carbine

The AR6720, in my opinion, is the best all around performer in the AR15 carbine patrol setting. You have the reliability, accuracy, and modularity you have come to expect from the AR15 platform. For me the AR6720 seams to handle just right. The handling and transitions in movement of the 6720 are awesome.  The carbine seams to be a seamless extension of your arms and fingers. It is a joy to shoot. It is the most well balanced, fast and easy handling  16″ AR I have used.  For me, handles like the familiar 11.5″ commando, just with a longer barrel.  The stock weight comes in right at 6.12 lbs. With the (MIL-B-11595E CMV) Chrome Lined 1/7 twist barrel in 5.56mm, it will handle any ammo you want to put down range.  If you choose the right accessories and enhancements, you will not add to much to the weight. I have owned numerous AR carbines and the 6720 is one of my favorites. It just might be my favorite.

The only complaint, some people may have, is the 6720 does not have an “F” marked FSB. This is a non-issue. The FSB comes with a taller front sight post, making up for the lower shelf on the FSB, for zeroing with any BUIS you choose.

Barrel / FSB /FSP
Barrel / FSB /FSP

I have chosen to set my 6720 up, in the following configuration, per my personal preferences.  With a loaded 30 round magazine, I am still within the 6 lbs. range. This maximizes performance and handling of my patrol carbine needs out to 200 yards, although the Colt AR6720 is very capable of excellent performance well past 200.

  • GG&G MAD BUIS
  • Tango Down Battle Grip
  • Daniel Defense Omega 7 Rail
  • BCM Gunfighter Charging Handle (Mod4)
  • Aimpoint Micro w/ADM mount
  • Tactical Link Z-360 mount and Convertible Sling
  • Lancer L5 Translucent AWM magazine
Colt 6720 w/ DD Omega 7 rail, Aimpoint Micro
Colt 6720 w/ DD Omega 7 rail, Aimpoint Micro

At current prices, you can find the AR6720 in the 800 dollar range. I feel there is no argument or justification you can make, if your in the marked for a serious lightweight Defensive/Duty carbine, to buy another carbine at these prices. For a basic AR carbine, the Colt AR6720 is probably the best lightweight carbine purchase you can make. There are numerous articles on the accuracy of the 6720 and we have shown you how accurate a Colt carbine can be here on Loose Rounds. The 6720 is fast and smooth, and it will make the hits when it counts. If I was still patrolling on the street, the Colt AR6720 would be in my cruiser and it would be my go to patrol carbine.

Duncan.

Here is a good video with more info and shooting, by Mrgunsngear, on the AR6720:

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