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And the reason for my preference is that the LE6940 is more customizable.įor starters, I can easily install a forward vertical grip and a SureFire tactical light on the LE6940's monolithic rail system. A week later a friend of mine delivered consistent head shot accuracy with every round fired from the 50-yard line while using his brand new Colt LE6940 with an Aimpoint Comp M2 and an Aimpoint 3X Magnifier.Įven though I tend to prefer plain Jane M4s, I found myself actually favoring the LE6940 over the LE6920. I recently sighted in a sample LE6940 that Colt sent to me to evaluate for this article and found that with some minor adjustments this rifle was dead nuts accurate at 50 yards while using 55-grain Federal FMJ ammunition.īear in mind that I intentionally sighted this rifle in while using the folding iron sights that come standard on this carbine. While field testing the Colt LE 6940 I found this patrol/tactical carbine to be surprisingly lightweight and easy to carry. This tidbit of information is important for law enforcement agencies and individual officers who are left handed. In addition, the Colt LE 6920 and the Colt LE 6940 also have a reversible selector switch. The Colt LE6940 is chambered in 5.56mm and incorporates additional Mil-Spec features in its design. This is the same rear sight that is used on all Colt Mil-Spec M4s that are provided to the U.S. The folding front sight is made by Colt, while the rear sight, which can be adjusted to engage targets out to 600 yards, is made by MaTech.
In its flat top configuration, the LE6940 is also different from the LE6920 because the LE6940 features folding front and rear sights.
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One of the main differences between the Colt LE6920 and the Colt LE6940 is the use of a one-piece rock solid upper receiver that has a monolithic rail and a free floating barrel. My oldest son who serves as a police officer recently purchased a slightly used Colt LE6920 from one of my shooting buddies so he can carry a high-quality Colt M4-style patrol rifle on duty. If all you need is a patrol rifle that utilizes iron sights or you plan on installing a minimal amount of accessories such as an optic and a tactical flashlight, the LE6920 is well suited to your task. The Model LE6921 is a semi-automatic version of the LE6920 that is equipped with a 14.5-inch barrel, while the LE6920 is a semi-automatic civilian legal Colt carbine with a 16.1-inch barrel.įrom experience I can say that the Colt LE6920 is an outstanding semi-automatic M4-style carbine. Features of the LE6920 include: a four-position collapsible stock, a 5.56mm chamber, a chrome-lined chamber and bore, a barrel with a 1-in-7-inch twist that accommodates ammunition up to 80 grains, an adjustable front sight, a removable carry handle that includes a flip-up iron sight, and an accessory rail under the handle. The Colt Model LE6920 is still one heck of a patrol or tactical rifle. The accessory rail on top of the upper receiver was designed to accommodate various red dot and magnified optics.
Then someone got the bright idea to kill two birds with one stone and design M16-style rifles and M4-style carbines with a removable carry handle and an accessory rail system on top of the rifle's upper receiver. Initially, some rifle operators attached optics to various Colt M4s and other copies of this design that had a fixed carry handle. The first giant leap into the 21st century as far as law enforcement patrol and tactical rifles occurred when high-quality optics became available for armed professionals who were assigned to tactical duties.