Colt LE6920 “M4 Carbine” 5.56 NATO Semi-Automatic Rifle, 16" Chrome-Lined Barrel, LE-Prefix Serial
The Colt LE6920 is widely recognized for faithfully translating the U.S. military M4 configuration into a civilian-legal rifle. This example retains all the hallmark features buyers look for: a forged, T-marked flat-top upper, 16.1-inch chrome-lined M4-profile barrel with a 1:7 twist, and Colt’s transitional “M4 Carbine” roll-mark. The LE-prefix serial number confirms original law-enforcement production lineage, and the rifle ships with six Magpul PMAG Gen M3 magazines and a single-point sling—everything needed to head straight to the range.
Condition
Overall Condition: Good – Shows signs of prior use and handling with finish wear consistent with regular range time.
Bore Condition: Good – Clean and well-maintained with minor wear marks.
Bore Rifling: Good Rifling – Lands and grooves remain well-defined.
Specific Condition Notes: Light scratches and handling marks are present on the receiver and handguards. No corrosion observed. The bore is clear and shiny.
What’s Included
- Colt LE6920 5.56 NATO rifle
- 6 × 30-round Magpul PMAG Gen M3 magazines
- Single-point bungee sling
Colt builds the LE6920 on forged 7075-T6 aluminum receivers finished with Type III hard-coat anodizing for durability. The upper is T-marked, making it easy to return optics and accessories to the same slot every time.
The 16.1-inch barrel is chrome-lined for extended life and corrosion resistance, sports the correct M4 profile with a bayonet lug, and carries the Colt “13629 MP 5.56 NATO 1/7” proof mark. A standard 1/2-28 threaded muzzle lets you add flash hiders, brakes, or suppressor mounts without modification.
The direct-impingement operating system pairs with a magnetic-particle-tested Carpenter 158 bolt carrier group, maintaining the reliability Colt rifles are known for. A carbine-length gas system keeps the handling true to the M4 specification.
Furniture includes Colt’s six-position telescoping stock, A2 pistol grip, and two-piece polymer handguards. Sight options are ready to go with the fixed A2 front post and a Magpul MBUS Gen 2 flip-up rear sight; the flat-top upper also provides continuous Picatinny space for optics.