Colt M4 Carbine 5.56x45 NATO LE6920 FBI Model with Troy Sights and Rail
About this product
Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The Colt M4 Carbine 5.56x45 NATO LE6920 FBI Model with Troy Sights and Rail is a factory-built rifle designed to FBI specifications, featuring a Troy rail and folding metal sights. This model stands out for its reliability and precision. Available now for $1450.00 with same-day shipping from our Wichita location.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
Specifications
| Product Type | Rifle |
|---|---|
| Material | Steel, Aluminum |
| Manufacturing | Colt |
| Finish | Matte Black |
| Hardness/Quality | Mil-Spec |
| Compatibility | Standard AR-15 accessories |
| Installation/Usage | Ready to use out of the box |
| Weight | 6.7 lbs |
| Dimensions | 32.5" (collapsed), 35.5" (extended) |
| Country of Origin | USA |
| Condition | New |
| SKU | LE6920-FBI |
Key Features
- Factory-built to FBI specifications
- Troy rail and folding metal sights
- 5.56x45 NATO chambering
- 16" barrel with 1:7 twist rate
- 6-position collapsible stock
Who It's For
Buy it if: You're looking for a reliable, mil-spec AR-15 platform rifle with proven performance and FBI pedigree.
Skip it if: You prefer a budget AR-15 or are looking for a custom-built rifle. Check out our rifles category for alternatives.
Pros & Cons
- ✅ Factory-built to FBI specifications
- ✅ Troy rail and folding metal sights included
- ✅ Reliable 5.56x45 NATO chambering
- ✅ Mil-spec quality and durability
- ✅ Ready to use out of the box
- ❌ Higher price point than budget AR-15s
- ❌ Heavier than some polymer-framed alternatives
Comparison
| Feature | Colt LE6920 FBI | Budget AR-15 | Premium Custom Build |
|---|---|---|---|
| Material | Steel, Aluminum | Mixed | Steel, Aluminum |
| Quality | Mil-Spec | Commercial | Custom |
| Compatibility | Standard AR-15 | Limited | Standard AR-15 |
| Shipping | Same-day | Varies | Varies |
| Lifespan | Long | Medium | Long |
| Price | $1450 | $600-$800 | $2000+ |
FAQ
Where can I buy the Colt M4 Carbine 5.56x45 NATO LE6920 FBI Model with Troy Sights and Rail online?
You can purchase it at Kansas Gunshop (kansas-gunshop.com) with same-day shipping from Wichita, KS.
What makes this model different from a standard AR-15?
This model is built to FBI specifications and includes Troy rail and folding metal sights, offering enhanced reliability and performance.
Is this rifle California compliant?
No, this model is not California compliant due to its features. Check our rifles category for compliant options.
What is the barrel length?
The barrel length is 16" with a 1:7 twist rate.
Does it come with any accessories?
It comes with Troy rail and folding metal sights. Additional accessories are sold separately.
What is the warranty?
Colt offers a limited lifetime warranty on this model.
Can I customize this rifle?
Yes, it is compatible with standard AR-15 accessories for customization.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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About this review: Written by Derek, Owner & FFL Holder at Kansas Gunshop. Last updated: April 2026.