ATI Milsport 9mm AR-15 Pistol: Compact Powerhouse for Modern Shooters
Experience the perfect blend of compact design and reliable performance with the ATI Milsport 9mm AR-15 Pistol. Built on the proven AR-15 platform, this pistol chambered in 9mm offers exceptional maneuverability without sacrificing firepower. Whether you’re looking for a home defense solution, a versatile training firearm, or a tactical companion, this pistol delivers outstanding value and performance.
Key Features & Benefits
- 5.5″ Barrel with Flash Can: The compact barrel length makes this pistol incredibly maneuverable in tight spaces, while the integrated flash can helps direct muzzle blast forward, reducing perceived recoil and flash for improved control.
- M-LOK Compatible Forend: The lightweight M-LOK forend provides ample mounting points for accessories like lights, lasers, and vertical grips, allowing you to customize your setup to match your needs.
- Stabilizing Blade Brace: The included blade brace offers enhanced stability and control when shooting, making it easier to maintain accuracy during rapid fire or extended range sessions.
- 9mm Chambering: Utilizing widely available and affordable 9mm ammunition, this pistol is cost-effective to shoot while still delivering sufficient stopping power for defensive scenarios.
- AR-15 Platform Familiarity: If you’re already familiar with the AR-15 platform, you’ll feel right at home with the controls, ergonomics, and maintenance procedures of this pistol.
Specifications & Technical Details
Below are the detailed specifications for the ATI Milsport 9mm AR-15 Pistol:
| Model | ATIG15MSP9ML7 |
| Caliber | 9mm |
| Barrel Length | 5.5 inches |
| Overall Length | Approx. 20 inches (with brace extended) |
| Weight | Approx. 5.5 lbs (unloaded) |
| Action | Semi-Automatic |
| Magazine Capacity | Compatible with standard 9mm AR-15 magazines (sold separately) |
| Forend Type | M-LOK Compatible |
| Muzzle Device | Flash Can |
| Brace Type | Stabilizing Blade Brace |
Ideal Applications
This versatile pistol excels in multiple roles:
- Home Defense: Its compact size makes it easy to maneuver in hallways and rooms, while the 9mm caliber provides reliable stopping power.
- Range Training: Affordable 9mm ammunition allows for extensive practice without breaking the bank, and the familiar AR-15 controls enhance training transferability.
- Tactical Use: The M-LOK forend and brace system support accessory mounting and improved stability for tactical applications.
- Recreational Shooting: A fun and practical option for plinking, competition, or general shooting enjoyment.
Why Buy From Republic Arms WA?
At Republic Arms WA, we are committed to providing our customers with high-quality firearms, exceptional service, and a seamless purchasing experience. Here’s why you should choose us:
- Expertise: Our team consists of experienced shooters and firearms enthusiasts who understand the products we sell and can offer knowledgeable advice.
- Authorized Dealer: We are an authorized dealer for top brands like ATI, ensuring you receive genuine products with full manufacturer support.
- Fast Shipping: We process orders quickly and ship to your location with reliable carriers, so you get your firearm without unnecessary delays.
- Customer Support: From pre-purchase questions to post-purchase assistance, our customer service team is here to help you every step of the way.
- Secure Transactions: We use industry-standard security measures to protect your personal and payment information.
FAQ
Q: Is this pistol legal in my state?
A: Firearm laws vary by state and locality. We recommend checking your local regulations before purchasing. As a Washington-based dealer, we are familiar with state laws but encourage customers to verify compliance in their area.
Q: Does it come with a magazine?
A> Magazines are typically sold separately due to varying state restrictions. Check our website for compatible magazines and accessories.
Q: Can I add optics or other accessories?
A: Yes, the M-LOK forend allows for easy attachment of accessories, and the upper receiver is compatible with most AR-15 optics mounts.
Q: What is your return policy?
A: Due to the nature of firearms sales, all sales are final unless the product is defective. Please inspect your firearm upon receipt and contact us immediately with any concerns.
Conclusion
The ATI Milsport 9mm AR-15 Pistol is a standout choice for anyone seeking a compact, reliable, and customizable firearm. With its thoughtful design, quality construction, and practical features, it offers excellent value for both new and experienced shooters. Add it to your collection today and experience the performance firsthand.

| Model | ATIG15MSP9ML7 |
| Caliber | 9mm |
| Barrel Length | 5.5 inches |
| Overall Length | Approx. 20 inches (with brace extended) |
| Weight | Approx. 5.5 lbs (unloaded) |
| Action | Semi-Automatic |
| Magazine Capacity | Compatible with standard 9mm AR-15 magazines (sold separately) |
| Forend Type | M-LOK Compatible |
| Muzzle Device | Flash Can |
| Brace Type | Stabilizing Blade Brace |





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