The Colt M4 Carbine Magpul SL 5.56 16.1″ 30rd is a semi-automatic modern sporting rifle built for ranch work, range drills, and general utility. Chambered in .223 Rem / 5.56 NATO, it pairs a 7075-T6 aluminum receiver with Magpul MOE SL furniture to keep the weight down and the reliability up. This is a no-frills carbine that handles rough use without complaining—exactly what you need when the job calls for a rifle that just works.
| Specification | Detail |
|---|---|
| Manufacturer | Colt (per manufacturer specs) |
| Model | M4 Carbine Magpul SL |
| Material | 7075-T6 aluminum receiver, steel barrel |
| Compatibility | .223 Rem / 5.56 NATO, standard AR-15 magazines |
| Finish | Matte black anodized receiver, black Magpul furniture |
| Weight | Approximately 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 16.1″ Chrome-Lined Barrel – Why it matters: Chrome lining extends barrel life and resists corrosion, so this carbine keeps shooting straight through mud, dust, and hard use.
- Magpul MOE SL Furniture – Why it matters: Slim handguard and buttstock reduce weight and improve grip, making the rifle easier to carry all day on the ranch or during range sessions.
- 1:7″ Twist Rate – Why it matters: Stabilizes both 55-grain and heavier 62-grain rounds, giving you flexibility for varmint control or defensive loads.
- Removable 30-Round Magazine – Why it matters: Comes ready to feed from the box, with standard AR mag compatibility for easy reloads and spares.
- Matte Black Anodized Finish – Why it matters: Reduces glare and resists scratches, keeping the rifle low-profile and durable in field conditions.
Who It’s For
This rifle is for ranchers, rural workers, and utility shooters who need a dependable carbine for predator control, target practice, or general security. It’s also a solid pick for anyone who wants a factory-built Colt without extra bells and whistles—just a proven platform with Magpul upgrades.
Pros and Cons
- Pros: Lightweight build, durable 7075-T6 receiver, accurate 1:7 twist barrel, reliable Colt action, Magpul furniture saves weight.
- Cons: No free-float handguard—the Magpul SL handguard uses a standard delta ring, which can limit accessory mounting compared to M-Lok or KeyMod rails.
Comparison vs. Competitors
| Feature | Colt M4 Magpul SL | Geissele Super Duty 16″ | Zev Technologies OZ9C |
|---|---|---|---|
| Barrel Length | 16.1″ | 16″ | 16″ |
| Caliber | 5.56 NATO | 5.56 NATO | 5.56 NATO |
| Handguard | Magpul SL (non-free-float) | Geissele MK16 (free-float) | Zev M-Lok (free-float) |
| Receiver Material | 7075-T6 aluminum | 7075-T6 aluminum | 7075-T6 aluminum |
| MSRP | $1,178.78 | $1,899.00 | $1,699.00 |
FAQ
Does this rifle come with a carrying handle or optics?
No, the Colt M4 Carbine Magpul SL ships without a carrying handle or optics. The upper receiver has a Picatinny rail for mounting your own sights or red dot. This keeps the price down and lets you choose what works best for your use.
Is this carbine legal in my state?
It depends on your state and local laws. The Colt M4 Carbine Magpul SL is a standard semi-automatic rifle with a 16.1″ barrel and collapsible stock. Check your state’s regulations on magazine capacity, feature restrictions, and registration before ordering.
What magazines are compatible with this rifle?
It uses standard AR-15-style magazines. The included 30-round magazine is a Colt factory mag. Any quality AR-15 magazine—like Magpul PMAGs, Lancer L5s, or GI metal mags—will work fine.
Can I mount a bipod or vertical grip on the handguard?
The Magpul SL handguard has M-Lok slots for mounting accessories like bipods, grips, or lights. However, because it’s not a free-float handguard, accuracy may be slightly affected if you put heavy pressure on the handguard during shooting.
According to Colt specs, this rifle is built to the same mil-spec standards as their M4 carbines used by military and law enforcement. Over 8 million Colt M4-style rifles have been produced since the 1990s, making it one of the most proven platforms on the market.
Trust Block
✓ Nationwide delivery (all 50 states)
✓ Ships 1-2 business days
✓ 30-day returns
✓ Secure checkout
Browse more in these categories: AR Rifles | Colt Rifles | 5.56 Rifles
Last updated: April 2026
FFL Transfer & Firearms Laws for Colt M4 Carbine Magpul SL 5.56 16.1″ 30rd
All firearms, including the Colt M4 Carbine Magpul SL 5.56 16.1″ 30rd, 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 M4 Carbine Magpul SL 5.56 16.1″ 30rd 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 M4 Carbine Magpul SL 5.56 16.1″ 30rd 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 M4 Carbine Magpul SL 5.56 16.1″ 30rd?
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 M4 Carbine Magpul SL 5.56 16.1″ 30rd 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.
Be the first to review “Colt M4 Carbine Magpul SL 5.56 16.1″ 30rd”
FFL Transfer & Firearms Laws
All firearms, including the Colt M4 Carbine Magpul SL 5.56 16.1″ 30rd, must be shipped to a licensed Federal Firearms License (FFL) dealer. A background check and any required local paperwork must be completed before you can take possession.
How It Works
- Place your order online.
- Send us your preferred local FFL dealer info.
- We ship the firearm to your FFL after verification.
- Complete background check and pick up from your dealer.
Legal Compliance
We comply with all U.S. firearm laws. It is your responsibility to ensure the Colt M4 Carbine Magpul SL 5.56 16.1″ 30rd is legal in your state. Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.
Helpful Links
Need help? Contact our team — we’ll guide you through selecting a compliant firearm and the FFL transfer process.
Reviews
There are no reviews yet.