The Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black is a factory-ready, semi-automatic AR-platform rifle built for shooters who prefer to install their own stock, handguard, and rear sight. It comes with a 16.1-inch chrome-lined barrel, a 1:7 twist rate, and a direct gas operating system. This OEM configuration omits the buttstock, handguard, magazine, and rear sight so you can add the exact components you want.
| Manufacturer | Colt |
|---|---|
| Model | LE6920-OEM1 |
| Material | Chrome-lined barrel, carbon steel upper/lower receiver |
| Compatibility | AR-15 mil-spec handguards, stocks, and rear sights (per manufacturer specs) |
| Finish | Matte Black anodized |
| Weight | 6.0 lbs (approx., without furniture) |
| Condition | New |
Key Features
- Chrome-lined barrel (16.1″) — WHY IT MATTERS: Chrome lining extends barrel life and resists corrosion, so this rifle stays accurate round after round. The 1:7 twist stabilizes heavier 62-77 grain bullets, giving you flexibility for target shooting or home defense.
- Direct gas system with locking bolt — WHY IT MATTERS: This proven system reduces felt recoil and keeps the action running smooth. It’s the same platform used by the U.S. military, so reliability is built in.
- OEM-ready configuration — WHY IT MATTERS: You get a complete lower and upper receiver group minus the stock, handguard, magazine, and rear sight. That means you can pick a free-float handguard, a collapsible stock, and a red dot that fit your shooting style.
- A2 front sight included — WHY IT MATTERS: The front sight post is already installed and adjustable for elevation. Pair it with a rear flip-up or carry handle sight for a classic iron-sight setup.
- Matte Black finish — WHY IT MATTERS: The non-reflective matte coating reduces glare and blends in during low-light conditions. It also resists scratches and wear.
Who It’s For
This Colt LE6920-OEM1 is for the shooter who wants a quality Colt M4 platform but prefers to customize furniture and accessories. It’s a great choice for first-time AR builders who want a factory-assembled upper and lower without the guesswork. It’s also ideal for experienced shooters who already own a favorite stock, grip, and handguard and just need a reliable base rifle.
Pros / Cons
- Pro: Mil-spec chrome-lined barrel and bolt carrier group — proven durability for thousands of rounds.
- Pro: Lightweight at around 6 pounds without accessories, easy to handle for smaller-framed shooters.
- Pro: 5.56 NATO chamber accepts both .223 Remington and 5.56 ammunition.
- Con: The OEM configuration means you must purchase a stock, handguard, magazine, and rear sight separately. If you want a complete rifle out of the box, look at the Colt LE6920-MP-B.
Comparison
| Feature | Colt LE6920-OEM1 | Geissele Super Duty 16″ | Agency Arms AAR-15 |
|---|---|---|---|
| Barrel Length | 16.1″ chrome-lined | 16″ chrome-lined | 16″ stainless steel |
| Gas System | Direct gas, carbine length | Direct gas, mid-length | Direct gas, mid-length |
| OEM Configuration | Yes (no stock/handguard/sight) | No (complete rifle) | No (complete rifle) |
| Price | ~$1,004 | ~$1,800 | ~$2,200 |
| Best For | Custom builders on a budget | Shooters wanting a premium complete rifle | Competition and high-end builds |
FAQ
Does this rifle come with a rear sight?
No. The Colt LE6920-OEM1 ships with an A2 front sight but no rear sight. You’ll need to add a carry handle, flip-up rear sight, or a red dot optic.
What stock and handguard will fit this rifle?
Any mil-spec AR-15 carbine stock and carbine-length handguard (7-inch) will fit. The barrel nut is standard mil-spec, so drop-in or free-float handguards work. You’ll need a standard AR-15 buffer tube and castle nut for the stock.
Is this rifle California compliant?
No. This model does not include a magazine lock or compliant stock. Check your local laws before ordering. We offer compliance parts separately.
Can I use .223 Remington ammo in this rifle?
Yes. The 5.56 NATO chamber is safe for both .223 and 5.56 ammunition. Always follow safe handling practices.
What magazines does it accept?
This rifle accepts standard AR-15/M16 magazines (30-round PMAG or GI style). It does not ship with a magazine.
Ready to Build Your Colt LE6920-OEM1?
This Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black is in stock and ready to ship. Add your favorite furniture and accessories to create a custom AR that fits you. Over 80% of first-time AR builders choose an OEM model to save money and learn the platform. Order now and start your build.
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
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Browse more AR Rifles or check out AR Parts and AR Uppers.
Last updated: April 2026
FFL Transfer & Firearms Laws for Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black
All firearms, including the Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
Frequently Asked Questions About This Product
Why buy Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Colt LE6920-OEM1 M4 Carbine 5.56 NATO 16.1″ Matte Black available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: AR Rifles.
What tags or features does this product have?
Key features and tags for this product include: .
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.

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