Colt LE6920 M4 Carbine 5.56 NATO 16.1 in. 30 rd.
$1,211.80
The Colt LE6920 M4 Carbine 5.56 NATO 16.1 in. 30 rd. delivers mil-spec reliability with a chrome-lined barrel, Magpul PMAG and MBUS sights included. Ideal for training, duty, and recreational shooting.
Ships to all 50 states. Available nationwide.
Description
The Colt LE6920 M4 Carbine 5.56 NATO 16.1 in. 30 rd. is a semi-automatic AR-15 built on a mil-spec M4 chrome-lined barrel and direct-gas system. It ships with a Magpul PMAG 30-round magazine and MBUS flip-up sights, ready for range training, duty applications, or recreational shooting.
Specifications
| Manufacturer | Colt (per manufacturer specs) |
|---|---|
| Model | LE6920 |
| Material | 7075-T6 aluminum receiver, chrome-lined barrel (per manufacturer specs) |
| Compatibility | Standard AR-15 mil-spec parts and accessories |
| Finish | Black anodized (per manufacturer specs) |
| Weight | 6.95 lbs (empty, per manufacturer specs) |
| Condition | New |
Key Features
- M4 Chrome-Lined Barrel — Why it matters: The 16.1-inch, 1:7 twist barrel resists corrosion and fouling, delivering consistent accuracy and longevity even under heavy use.
- Mil-Spec Direct-Gas System — Why it matters: Proven reliability with standard .223 Rem or 5.56 NATO loads, cycling smoothly in diverse conditions.
- Magpul PMAG 30-Round Magazine — Why it matters: Industry-standard polymer mags that feed reliably and survive rough handling, right out of the box.
- Magpul MBUS Flip-Up Sights — Why it matters: Low-profile backup irons that co-witness with optics, giving you a ready-to-shoot setup without extra purchases.
- Carbine-Length Gas System — Why it matters: Balances recoil impulse and reliability for a 16.1-inch barrel, making it a proven choice for duty and range work.
Who It’s For
This carbine suits traditional shooters who value mil-spec build quality and want a reliable platform for training, home defense, or recreational plinking. It also fits law enforcement or security personnel needing a proven duty rifle with familiar controls.
Pros and Cons
- Pros: Chrome-lined barrel for durability; includes quality Magpul furniture and sights; mil-spec compatibility for easy upgrades; proven Colt reliability.
- Cons: Standard trigger pull (approx. 6-7 lbs) may feel heavy for precision shooters; no free-float handguard included.
Comparison vs. Competitors
| Feature | Colt LE6920 | Geissele Super Duty | Zev Technologies OZ9 |
|---|---|---|---|
| Caliber | .223 Rem/5.56 NATO | 5.56 NATO | 9mm (pistol) |
| Barrel Length | 16.1 in. | 16 in. | 4.5 in. |
| Gas System | Direct impingement | Direct impingement | N/A |
| Trigger | Mil-spec (standard) | Geissele SSA-E | Flat-faced |
| Price | $1,081.96 | $1,800+ | $1,200+ |
| Best For | Duty/training on budget | Precision/competition | Handgun performance |
FAQ
Is the Colt LE6920 compatible with aftermarket AR-15 parts?
Yes, the LE6920 uses standard mil-spec interfaces, so most AR-15 stocks, grips, handguards, and triggers fit without modification.
What type of ammunition can I use?
It is chambered for .223 Remington and 5.56 NATO. You can safely shoot either, but 5.56 NATO offers higher pressure for defensive use.
Does it come with a case or tools?
It ships with one Magpul PMAG 30-round magazine, Magpul MBUS flip-up sights, and a basic owner’s manual. No case or tools are included.
What is the barrel twist rate?
The barrel has a 1:7 twist rate, which stabilizes heavier bullets (55-77 grains) well for accuracy at longer ranges.
Trust & Service
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
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Last updated: April 2026




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