SDS MAC 9 DS COMP Handgun 9mm Luger 17rd Magazines(2) 4.25'' Barrel AOS Optic Plate Black
The SDS MAC 9 DS COMP is a modern double-stack 1911 in 9mm Luger built for shooters who want full-size capacity without the bulk of a traditional duty gun. This is a single-action semi-automatic that bridges classic 1911 ergonomics with contemporary tactical features—think of it as a platform that respects the platform's heritage but doesn't live in the past. Whether you're running it in competition, carrying it professionally, or spending a weekend at the range, the MAC 9 DS COMP delivers the accuracy and reliability the 1911 design is known for, wrapped in a package that accepts modern optics and comes with real ammo supply: two 17-round stainless steel magazines out of the box.
The gun itself is built around a carbon steel frame and slide finished in QPQ Tenifer, a hardened nitride process that resists corrosion and wear. The 4.25-inch, hammer-forged barrel is rated for 9mm and uses a single-port design. Width sits at a manageable 1.5 inches. You get a skeletonized adjustable trigger and hammer for a crisp break and fast lock times, plus a comfortable polymer grip module with 25 LPI front strap texturing and a flat mainspring housing. Slide serrations run forward for positive press checks and reloads.
What sets the MAC 9 DS COMP apart for modern carry and competition use is the Agency Optic System (AOS) footprint and included RMR plate, letting you mount your red-dot optic of choice while still co-witnessing the fiber optic front sight and serrated rear sight. The magazine release is adjustable—swap it side-to-side to dial in your preferences. These details matter when you're running hard at matches or counting on the gun professionally.
Key Features
- Double-stack 1911 design in 9mm: 17-round magazine capacity with two mags included
- Optics-ready with Agency Optic System footprint and included RMR plate for direct-mount red-dots
- Co-witness fiber optic front sight and serrated rear sight for backup aiming
- Carbon steel frame and slide with QPQ Tenifer finish for durability and corrosion resistance
- 4140 hammer-forged, single-port 4.25-inch barrel
- Skeletonized adjustable trigger and hammer for crisp, responsive breaks and fast lock times
- STI-compatible polymer grip module with 25 LPI front strap texture and flat mainspring housing
- Adjustable, interchangeable magazine release for left- or right-hand tuning
- Forward slide serrations for reliable manipulation
- Single-action operation with semi-automatic firing
Specifications
| Brand | SDS |
| Model | MAC 9 DS COMP |
| Caliber | 9mm Luger |
| Action Type | Semi-Auto, Single Action |
| Barrel Length | 4.25 inches |
| Barrel Material / Finish | 4140 Hammer-Forged / QPQ Tenifer |
| Frame / Slide Material & Finish | Carbon Steel / QPQ Tenifer |
| Magazine Capacity | 17+1 |
| Magazines Included | Two 17-round stainless steel, double-stack pattern |
| Width | 1.5 inches |
| Front Sight | Fiber Optic |
| Rear Sight | Black Serrated |
| Optics Ready | Yes, Agency Optic System (AOS) footprint with included RMR plate |
| Grip | STI-Compatible Polymer with 25 LPI Front Strap, Flat Mainspring Housing |
| Trigger | Adjustable Skeletonized |
| Hammer | Skeletonized |
| Magazine Release | Adjustable, Interchangeable |
| Threaded Barrel | No |
| Finish | Black |
Frequently Asked Questions
What optics can I mount on the MAC 9 DS COMP?
The pistol features an Agency Optic System (AOS) footprint and comes with an RMR plate that accommodates most popular red-dot optics that use the RMR mounting pattern. The included setup also lets your mounted optic co-witness the fiber optic front sight and serrated rear sight, giving you a backup aiming solution if the optic fails.
Is this pistol good for competition or carry?
Yes, the MAC 9 DS COMP is designed for both. It combines the ergonomics and proven reliability of the 1911 platform with modern features like optics mounting, a double-stack magazine for 17-round capacity, and an adjustable trigger. The two included magazines and high capacity make it practical for match shooting, and the compact barrel length and 1.5-inch width suit daily carry or professional duty use.
What magazines does the MAC 9 DS COMP use?
The gun ships with two stainless steel, 17-round magazines that use a STI-pattern double-stack design compatible with this pistol.
Can I adjust the magazine release for left-hand use?
Yes. The MAC 9 DS COMP features an adjustable, interchangeable magazine release that allows you to swap or reposition it for either left- or right-hand operation.

