Low prices on the Colt AR-15 6720 .223/5.56 start at Champion Firearms-
A Battle Proven Warhorse. The
AR-15 was first built by ArmaLite as an infantry rifle for the United
States military. After experiencing financial problems, ArmaLite sold
the design to Colt in 1958. Several modifications were made -- most
notably relocation of the charging handle to the rear of the receiver --
and the M-16 rifle was adopted into U.S. military service in 1962.
then began selling the semi- automatic version of the M-16 on the
civilian market in 1963, which was subsequently branded the "AR-15"
sporter rifle. The designation stuck and has been in place ever since.
Even though "AR-15" has been a registered trademark of Colt since day
one, it has become engrained in American culture as an industry standard
term used describe all of the Colt clones as well.
AR-15/M-16 represents the most successful weapon's platform in history.
Never before has a military firearm evolved so rapidly, so completely
and in so many directions. It often said that the AR-15 is the erector
set of the shooting world, being set- up, changed, accessorized,
rethought, rebuilt and put together to suit almost any need.
precision design has successfully served as a military, sniper, law
enforcement, defensive, hunting, competition and target rifle in more
calibers and configurations than one can possible conceive. No other
firearm can make that claim. Many argue that it is the most versatile
military small arm ever invented and after 60- years of service, is
still going strong today as our nation's primary battle rifle.
the heart of the design is a direct gas impingement system. Gas is
tapped from the barrel as the bullet passes by the port located above
the rifle's front sight base. The gas then rushes into the port and down
a gas tube located above the barrel and into the upper receiver.
there, the gas tube funnels into the bolt carrier. This gas system
unlocks the bolt and begins the cycling process, but only after the
bullet has exited the barrel. Direct impingement has several advantages
over gas piston systems. For semi- automatic rifles with a barrel length
of 16" or greater, impingement AR-15s are lighter, easier to free float
the barrel, and much less expensive to manufacture.
position collapsible stock allows the shooter to adjust length of pull
to their personal preference, while the carbine length handguard
provides steady handling. All rifle dimensions are mil-spec. The Colt
6920's bolt has been magnetic particle inspected, shot peened and
pressure tested to ensure that it's structurally sound and will not
Similarly, the gas key has been properly staked to the
bolt carrier. An ergonomic design makes the charging handle, safety
selector, magazine release and bolt catch easy to access. The single
stage, service grade trigger is both positive and breaks cleanly at 7-
The Lightweight M4 profile 16.1" 4150 chrome moly steel
barrel is then chrome lined to make it less susceptible to fouling,
reduce corrosion, enhance feeding and increase barrel life. The 1:7"
twist rate is fast enough to stabilize heavy bullets like the 77gr match
round, while still capable of accurately firing standard 55gr ball
The Colt 6720 is chambered for 5.56 NATO cartridges ,
which allows you to safely fire both full power 5.56 or lower powered
.223 rounds interchangeably without adjustment to the gas system. M4
feed ramps ensure proper feeding of ammunition to help reduce
malfunction rates, even during rapid fire.
Both upper and lower
receivers are forged from durable, lightweight aircraft grade 7075-T6
aluminum. Due to the fact the bolt locks into a steel extension on the
barrel and not the receiver, the Colt 6720 can easily use such
lightweight construction materials without sacrificing structural
The receiver surfaces are then hard coat anodized and
dry film lubed per military spec to provide wear and corrosion
resistance. The rifle weighs in at just 6 pounds and is a fast handling
carbine. It includes one 20- round magazine. All steel parts wear a mil-
spec manganese phosphate finish, including the barrel. Build quality is
excellent and there is virtually no play between the upper and lower
A detachable carry handle houses the rear sight and is
easily removed for the mounting of optics on the Picatinny receiver
rail. The rear sight is adjustable for windage and elevation. Unlike the
rear sight, the A2 front sight post is fixed. In the rare event a round
fails to go into battery, the rifle is equipped with a forward assist.
Similarly, a spring loaded receiver dust cover is designed to keep out
dirt and other debris from entering the action, but instantly opens
after the first shot.
For repair, the Colt is backed by a 1-
year warranty. Overall, the Colt 6720 is an affordable, lightweight
AR-15 rifle designed for many years of reliable service.
Caliber: .223REM / 5.56
Action Type: Semi- Automatic
Operating System: Direct Gas Impengement
Upper: Flat Top w/ Magpul MBUS Rear Sight
Forend: M4 Oval
Barrel: 16" Light 1-in-7" Twist with Chrome Lined Bore & Chamber
Stock: 6 position collapsible
Magazine: (1) 20- Round
Sights: Fixed Front Post with Magpul MBUS Flip-Up Rear
Gas Block: Integral w/ Bayonet Lug
Finish: Hard Coat Anodized Aluminum with Manganese Phosphate Steel Components
Trigger: Single Stage 7lb
Weight: 6.9 lbs.