Colt Releases New Gas Piston AR Platform Rifle — LE6940P
Six decades after the introduction of the M16, Colt has added a gas piston system to the venerable AR15. Colt put a gas piston in this new AR-platform rifle in order to improve reliability and reduce fouling. The new gas-piston Colt AR, designated the LE6940P, will be sold to both civilians and law enforcement agencies. In selling a gas-piston AR, Colt is following the lead of Heckler & Koch (HK 416) and other manufacturers who have found a market among buyers seeking a lower-maintenance AR with significantly less internal powder fouling than the original direct-gas-impingement AR design.
Colt’s product press release declares: “Colt Defense LLC … has advanced its one-piece monolithic upper receiver to introduce the LE6940P. This modular carbine has an articulating link piston (ALP) operating system and offers shooters a highly accurate, lightweight and easy-to-clean AR-platform rifle with an extended lifespan. The advanced piston carbine (APC) is a lightweight, highly accurate alternative to the traditional direct gas impingement system found in most ARs. The LE6940P utilizes a unique articulating link piston (ALP) operating system, which reduces inherent stress in the piston stroke by allowing for deflection and thermal expansion. As a result, shooters are offered a highly accurate firing experience and the weapon’s lifespan is extended.”
Piston Design Developed for U.S. Military
“The new LE6940P puts to use a new, improved version of a piston system that Colt originally pioneered for the U.S. Army,” said David Ridley, Vice President of Colt Defense LLC. Ridley added: “Colt was the first to put a piston system in an AR, and we have continued to improve on that system since. Now, any civilian shooter or law enforcement professional has the opportunity to shoot using this superior piston-operated AR.”
Monolithic Upper with Extended Rail
The LE6940P weighs just over 6.5 pounds, and measures 35 inches with stock extended. The rifle is chambered in .223 Rem (5.56×45 NATO) and uses standard AR15 magazines. Colt delivers the LE6940P with a full-length rail running from the rear of the upper receiver to the front sight. This allows many mounting options for sights and accessories. Colt has also includes a back-up iron sight (BUIS) and a folding front sight. The lower receiver is marked “Piston Carbine” and comes with a Colt/Rogers Super-Stoc M4 H-buffer stock kit with cam-lock lever, push-button QD swivel, and accessory kit. The standard barrel is a 16.5″-long M4-type contour with flash-hider. CLICK HERE for large photos of the internals, plus close-ups of the folding sights.
Nothing New Under the Sun?
In this NSSF Video, Ryan Cleckner, a former Sniper Instructor for the 1st Ranger Battalion, defines the term “MilliRadian” (Milrad) and explains how you can use a mildot-type scope to range the distance to your target. It’s pretty simple, once you understand the angular subtension for the reticle stadia dots/lines. Cleckner also explains how you can use the milrad-based reticle markings in your scope for elevation hold-overs and windage hold-offs.
