Military Armament Corp MAC 9 DS Optic Ready 9mm Double-Stack 1911 with Underworld Arms Compensator & TTI Magwell – 20+1
The MAC 9 DS merges modern double-stack 1911 ergonomics with the reborn Military Armament Corp name. This optic-ready, full-size pistol ships with a factory RMR-pattern slide cut, a 4.25-inch hard-chrome–lined bull barrel, and forged-steel construction throughout. Professionally fitted upgrades—an Underworld Arms two-port compensator and a Taran Tactical Innovations flared magwell—add practical recoil control and faster reloads, making this 2024-production example stand out for shooters seeking an affordable yet feature-rich entry into the 2011-style platform.
Condition
Overall Condition: Good – shows signs of prior use and handling.
Bore Condition: Good – clean and shiny with minor wear marks.
Bore Rifling: Good – intact, well-defined lands and grooves.
Specific Condition Notes: Light surface scratches and finish blemishes are present on the slide and frame. The trigger guard has been professionally relief-cut to clear the installed Underworld Arms compensator. Bore remains bright.
What’s Included
- MAC-branded soft zip case
- MAC 9 Double Stack owner’s manual
- RMR adapter plate
- Taran Tactical Innovations flared aluminum magwell (installed)
- Factory OEM flared magwell (loose)
- 1 × 20-round magazine
- 2 × 17-round magazines
Released in 2024/2025, the MAC 9 DS offers forged 4140 steel strength paired with a glass-filled polymer grip module that accepts STI/Staccato-pattern magazines. Its double-stack frame delivers a 20+1 capacity in 9 mm Luger while retaining familiar 1911 controls.
The factory slide wears a durable black QPQ Tenifer finish and comes milled for direct-mount RMR-footprint optics, backed by a green fiber-optic front sight and blackout serrated rear for clear irons-only aiming.
A hard-chrome–lined, 4.25-inch bull barrel with an 11° target crown maximizes accuracy and service life. The Underworld Arms two-port compensator further tempers muzzle rise, and the required trigger-guard relief cut has been neatly executed.
Pistol handling is refined with a skeletonized 4.75-lb trigger featuring an over-travel screw, ambidextrous thumb safeties, a grip safety, and a skeletonized loop hammer. Full-length frame rails support smooth, precise cycling.
With an MSRP just over $1,000 and premium extras already installed, this optic-ready MAC 9 DS represents strong value for shooters who want a feature-packed, double-stack 1911 platform without aftermarket hassle.