Colt AR-15 A3 Tactical Carbine 5.56×45 NATO with Heavy
Specs at a glance
About this product
Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The Colt AR-15 A3 Tactical Carbine in 5.56×45 NATO with a heavy barrel delivers reliable performance for tactical and recreational use. Built with Colt's legendary quality, this rifle features a durable heavy barrel for sustained accuracy. 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
Specifications
| Product Type | AR-15 Rifle |
|---|---|
| Caliber | 5.56×45 NATO |
| Barrel Type | Heavy Barrel |
| Material | Forged 7075-T6 Aluminum Receiver |
| Finish | Hardcoat Anodized |
| Stock | 6-Position Collapsible |
| Weight | 7.5 lbs |
| Overall Length | 32.5" - 35.5" (collapsed/extended) |
| Country of Origin | USA |
| Condition | New |
| SKU | COLT-A3-TAC |
Key Features
- Colt's legendary reliability and build quality
- Heavy barrel profile for improved heat dissipation and accuracy
- Forged 7075-T6 aluminum upper and lower receivers
- Hardcoat anodized finish for durability
- 6-position collapsible stock for adjustable length of pull
- A3 flat-top upper receiver for optic mounting
- Chrome-lined barrel for extended service life
- M4 feed ramps for reliable cycling
Who This Rifle Is For
Buy it if:
- You want a proven, reliable AR-15 from the original manufacturer
- You need a heavy barrel for sustained fire without accuracy loss
- You prefer American-made firearms with military heritage
- You want a platform ready for optics and accessories
Skip it if:
- You're looking for an ultralight build (check our other AR-15 options)
- You need a pistol-caliber carbine (see our PCC selection)
- You prefer a budget-priced import (we carry value options too)
Pros & Cons
Pros:
- ✅ Colt quality and reliability
- ✅ Heavy barrel maintains accuracy during extended sessions
- ✅ Forged receivers for durability
- ✅ Flat-top upper ready for optics
- ✅ Made in USA with military heritage
Cons:
- ❌ Heavier than pencil-barrel alternatives
- ❌ Basic furniture may need upgrading for some users
How It Compares
| Feature | Colt AR-15 A3 Tactical | Budget Import AR | Premium Custom Build |
|---|---|---|---|
| Material Quality | Forged 7075-T6 | Cast components | Billet 7075 |
| Barrel | Chrome-lined heavy | Basic profile | Match-grade |
| Reliability | Proven military spec | Variable | High |
| Price | $899 | $600-$700 | $1,200+ |
Frequently Asked Questions
Is this a true Colt-manufactured rifle?
Yes, this is an authentic Colt firearm manufactured in their West Hartford, CT facility. We only sell genuine Colt products.
What's the advantage of the heavy barrel?
The heavy barrel profile resists heat buildup during extended firing sessions, maintaining accuracy better than lighter profiles.
Does it come with iron sights?
This model ships with a flat-top upper receiver ready for optics. You'll need to add your preferred sighting system.
What magazines does it use?
It accepts standard AR-15/M4 5.56 NATO magazines. We recommend quality USGI or PMAGs for best reliability.
Can I customize this rifle?
Absolutely. The AR-15 platform is highly modular. The flat-top upper and standard lower make upgrades straightforward.
Where can I buy Colt AR-15 rifles online?
Kansas Gunshop (kansas-gunshop.com) carries authentic Colt firearms with fast shipping from Wichita, KS.
What's your FFL transfer policy?
We ship to your local FFL dealer. Contact us with their information before ordering for smooth processing.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: AR-15 Rifles | Full Shop
As a Kansas-licensed FFL dealer since 2008, I've handled hundreds of Colt AR-15 rifles. This A3 Tactical model offers the perfect balance of Colt reliability and tactical versatility at a fair price point.
Last updated: April 2026