Colt LE6920 M4 Carbine 5.56 NATO, 16.1 in, 1:7 Twist, Threaded Barrel, Midwest Industries Quad-Rail, B5 Stock, Magpul K2
This Colt LE6920 M4 Carbine is a 5.56 NATO, AR-15 platform rifle with a 16.1-inch, 1:7 twist threaded barrel and direct-impingement operation. It features a flat-top upper with an integral Picatinny rail, a fixed A2 front sight base with sling swivel, and an A2 birdcage flash suppressor. This example is configured with a Midwest Industries two-piece quad-rail, a B5 Systems adjustable carbine stock, a Magpul K2 pistol grip, a polymer flip-up rear sight, and a custom ejection-port cover engraved 'ΜΟΛΩΝ ΛΑΒΕ / MOLON LABE.'
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor, superficial scratches and blemishes are present.
What’s Included
- Midwest Industries two-piece quad-rail handguard (installed)
- B5 Systems adjustable carbine stock (installed)
- Magpul K2 polymer pistol grip (installed)
- Polymer flip-up rear sight (installed)
- Custom engraved 'ΜΟΛΩΝ ΛΑΒΕ / MOLON LABE' ejection-port dust cover (installed)
- 1x 30-round Magpul PMAG polymer magazine
The LE6920 is Colt's M4 Carbine-pattern semi-automatic rifle built on forged aluminum receivers and chambered in 5.56 NATO. It uses a direct-impingement gas system and includes a 16.1-inch barrel with a 1:7 twist, a threaded muzzle, and an A2 birdcage flash suppressor. Capacity is 30+1 with STANAG-compatible magazines.
This rifle is fitted with a Midwest Industries two-piece quad-rail handguard featuring numbered T/L/B slots and 'Midwest Industries Made in U.S.A.' markings. The upper is a flat-top with an integral Picatinny rail, paired with a fixed A2 front sight base and a polymer flip-up rear sight for iron-sight use.
Ergonomics and handling are enhanced by a B5 Systems adjustable carbine stock and a Magpul K2 pistol grip. The lower receiver carries the Colt prancing pony and 'M4 CARBINE' and 'CAL. 5.56MM' markings, with the right side roll-marked 'COLT DEFENSE HARTFORD, CONN., U.S.A.'
Additional details include a custom ejection-port cover engraved 'ΜΟΛΩΝ ΛΑΒΕ / MOLON LABE' and a barrel marked '5.56 NATO 1/7 C.' The serial falls within the LE-prefix range associated with Colt's law-enforcement line. Made in the United States, this rifle retains Colt's mfg part number LE6920 and includes one 30-round Magpul PMAG.

