BudsGunShop.com - Is this DI or Piston?

Direct Impingment The Colt LE6940 Advanced Law Enforcement Carbine is the Tactical Operators answer to demanding situations. The advantage is unmatched. Built to mil-spec standards, no other company combines the quality and craftsmanship that Colt Defense LLC does. The LE6940 demonstrates fresh ingenuity with mil-spec hammer and trigger pivot pins, mil-spec backup iron sight and folding front sight for enhanced optical solutions, straight gas tube, and removable lower rail providing modularity for under-mounting accessories. The patented one-piece monolithic upper receiver incorporates a continuous mil-spec rail from the rear of the upper receiver to the front sight. This feature provides unmatched repeatability for mounting of optical systems, not found with separate handguard rail systems. Designed with accuracy in mind, it provides a true free-floating barrel, giving enhanced accuracy for longer-range acquisition capability. Action Semi-Automatic Caliber 223 Remington/5.56 NATO Barrel Length 16.1" Capacity 30+1 Trigger Standard Safety Lever OAL 32"-35.5" Weight 6.8 lbs Stock Description 4-Position Black Metal Finish Black Muzzle A2 Flash Hider Receiver Material 7075 T6 Aluminum Sights Folding Front, Magpul Rear Barrel Description Heavy Twist 1:7" Barrel Length Range 16.00" to 17.99" Weight Range 6.00 lbs to 7.99 lbs Hand Right Stock Finish Group Synthetic Metal Finish Group Blued/Black

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Hi David, It's Direct Impingement.

Direct Impingment The Colt LE6940 Advanced Law Enforcement Carbine is the Tactical Operators answer to demanding situations. The advantage is unmatched. Built to mil-spec standards, no other company combines the quality and craftsmanship that Colt Defense LLC does. The LE6940 demonstrates fresh ingenuity with mil-spec hammer and trigger pivot pins, mil-spec backup iron sight and folding front sight for enhanced optical solutions, straight gas tube, and removable lower rail providing modularity for under-mounting accessories. The patented one-piece monolithic upper receiver incorporates a continuous mil-spec rail from the rear of the upper receiver to the front sight. This feature provides unmatched repeatability for mounting of optical systems, not found with separate handguard rail systems. Designed with accuracy in mind, it provides a true free-floating barrel, giving enhanced accuracy for longer-range acquisition capability.
Action Semi-Automatic
Caliber 223 Remington/5.56 NATO
Barrel Length 16.1"
Capacity 30+1
Trigger Standard
Safety Lever
OAL 32"-35.5"
Weight 6.8 lbs
Stock Description 4-Position Black
Metal Finish Black
Muzzle A2 Flash Hider
Receiver Material 7075 T6 Aluminum
Sights Folding Front, Magpul Rear
Barrel Description Heavy
Twist 1:7"
Barrel Length Range 16.00" to 17.99"
Weight Range 6.00 lbs to 7.99 lbs
Hand Right
Stock Finish Group Synthetic
Metal Finish Group Blued/Black

Direct Impingement David.