Used Colt LE6920 M4 Carbine 5.56 NATO AR-15 AR15 16.1" LE-6920

Colt LE6920 M4 Carbine 556 M 4 AR15 AR 15

Sold On:November 10, 2026 at 9:45 PM
How Buying WorksEnded on November 10, 2026 at 9:45 PM

Key Features

  • Item Type: Semi Auto Rifles
  • Action: Direct Impingement
  • Manufacturer: Colt
  • Capacity: 30 1
  • Model: LE6920
  • Barrel Length: 16.1"
  • Caliber: 5.56mm NATO
  • Finish: Black
  • Overall Condition: Very Good

Product Description

    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.

Specifications

Item TypeSemi Auto Rifles
ManufacturerColt
ModelLE6920
SubmodelM4 Carbine
Caliber5.56mm NATO
Overall ConditionVery Good
Bore ConditionExcellent
Manufacturer Part NumberLE6920
ActionDirect Impingement
Capacity30 1
Barrel Length16.1"
FinishBlack
Stock/GripsMagpul K2 pistol grip
Sight/Opticiron sights
Country of OriginUnited States