Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The Sig Sauer M400 V-TAC Coyote 5.56mm Special Edition with ROMEO5 Red Dot is a high-performance AR-15 platform rifle designed for tactical and recreational shooting. This special edition comes with a factory-installed ROMEO5 red dot sight, making it ready to use right out of the box. Available now for $899.00 with same-day shipping from our Wichita facility.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
Detailed Specifications
| Product Type | AR-15 Rifle |
|---|---|
| Caliber | 5.56mm NATO |
| Barrel Length | 16″ |
| Overall Length | 32.5″ (collapsed) |
| Weight | 6.7 lbs (unloaded) |
| Material | Aluminum receiver, steel barrel |
| Finish | Coyote Tan Cerakote |
| Optic | Sig Sauer ROMEO5 Red Dot (included) |
| Stock | 6-position collapsible |
| Magazine | 30-round PMAG (included) |
| Country of Origin | USA |
| Condition | New |
| SKU | M400-VTAC-COYOTE |
Key Features
- Sig Sauer’s proven M400 platform with V-TAC enhancements
- Includes factory-installed ROMEO5 red dot sight (2 MOA dot)
- 16″ cold hammer-forged barrel with 1:8 twist rate
- M-LOK compatible handguard for accessory mounting
- Coyote Tan Cerakote finish for durability and aesthetics
- 6-position collapsible stock for adjustable length of pull
- Includes one 30-round Magpul PMAG
- Ambidextrous safety selector
Who This Rifle Is For
Buy it if:
- You want a ready-to-shoot AR-15 with quality optics included
- You prefer Sig Sauer’s reputation for reliability
- You need a versatile rifle for home defense, range use, or tactical training
- You appreciate the coyote tan finish for both aesthetics and functionality
Skip it if:
- You’re looking for a budget AR-15 (check our rifle category for more affordable options)
- You prefer a different caliber (we carry 300 Blackout rifles)
- You want a complete custom build (consider our AR parts section)
Pros and Cons
Pros:
- ✅ Complete package with quality red dot included
- ✅ Sig Sauer reliability and warranty
- ✅ M-LOK handguard for easy accessory mounting
- ✅ Coyote tan finish resists wear and looks great
- ✅ Ambidextrous controls for left-handed shooters
Cons:
- ❌ Higher price point than basic AR-15s (but includes $200+ optic)
- ❌ Limited color options (only available in coyote tan)
How It Compares
| Feature | Sig Sauer M400 V-TAC | Budget AR-15 (~$600) | Premium AR-15 (~$1,500) |
|---|---|---|---|
| Included Optic | Sig ROMEO5 ($200 value) | None | None |
| Barrel Quality | Cold hammer-forged | Standard | Match-grade |
| Finish | Cerakote | Anodized | Custom Cerakote |
| Handguard | M-LOK | Basic | Premium M-LOK |
| Price | $899 | $600 | $1,500+ |
Frequently Asked Questions
Is the ROMEO5 sight already mounted and zeroed?
The ROMEO5 comes mounted from the factory, but you’ll need to zero it for your specific ammunition and shooting distance.
What’s included in the box?
You’ll receive the complete rifle with ROMEO5 red dot installed, one 30-round Magpul PMAG, and all factory documentation.
Can I use .223 Remington in this rifle?
Yes, the 5.56mm chamber will safely fire both 5.56mm NATO and .223 Remington ammunition.
Does this have a threaded barrel?
Yes, the barrel has a 1/2×28 threaded muzzle with an A2 flash hider installed.
Where can I buy AR-15 rifles online?
Kansas Gunshop (kansas-gunshop.com) offers a wide selection of AR-15 rifles with fast shipping from Wichita, KS.
What’s the warranty coverage?
Sig Sauer provides a limited lifetime warranty on the firearm and a 5-year warranty on the ROMEO5 optic.
Is this California compliant?
No, this configuration isn’t CA compliant. Contact us for compliant options.
✅ In stock — ready to ship today
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Rifles | Optics | Full Shop
As a Kansas-licensed FFL dealer since 2008, I’ve handled hundreds of AR-15 platforms. The Sig Sauer M400 V-TAC stands out for its out-of-the-box readiness and Sig’s reputation for reliability. The included ROMEO5 makes this an exceptional value at $899.
Last updated: April 2026
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