MAC 1911-9 Double Stack – 9MM 4.25" RMR-Ready Tactical Pistol

American Engineering Meets Tactical Innovation – Designed in Tennessee, Built for Any Mission.

The MAC 1911-9 Double Stack is the next evolution of fighting pistols from Military Armament Corporation, designed in Knoxville, TN and precision-built by Tisas. This full-featured 9MM powerhouse is ready for duty, defense, or dynamic competition – equipped with premium upgrades like an RMR optic-ready slide cut, M1913 light rail, and a forged steel frame</strong.

At the core is a match-grade 4.25" bull barrel with QPQ Tenifer treatment and an 11º target crown, ensuring optimal accuracy and recoil control. The polymer grip module offers aggressive 25LPI checkering on the front and rear, plus a removable aluminum magwell for faster reloads. An ideal platform for optics and weapon lights, this pistol is mission-ready right out of the box.

? Notable Features

• RMR Pattern Optic Cut – Factory Milled
• 4.25" Bull Barrel – QPQ Tenifer Finish with 11º Crown
• Forged 4140 Carbon Steel Frame & Slide
• Lightweight Reinforced Polymer Grip Module with 25LPI Checkering
• Compatible with Tisas DS and STI® 2011 Magazines
• Ambidextrous Thumb Safety & Grip Safety
• M1913 Picatinny Rail – Weapon Light Ready
• Fiber Optic Front Sight, Serrated Black Rear
• 4.75 lb Skeletonized Trigger
• Two 17-Round OEM Checkmate Magazines Included

? What's in the Box

• MAC 1911-9 DS Pistol
• 2 x 17-Round Magazines
• Lockable Hard Case
• Cleaning Kit
• Bushing Wrench
• Trigger Lock
• Instruction Manual

? Specifications

• Caliber: 9MM
• Barrel Length: 4.25" – 1:10 RH Twist, Button Rifled
• Barrel Material: 4140 Forged, Hard Chrome Finish
• Frame/Slide Material: Forged 4140 Carbon Steel
• Frame Finish: Cerakote Black (H-146)
• Slide Finish: QPQ Tenifer
• Grip Module: Reinforced Polymer, Glass-Filled
• Trigger: Skeletonized, 4.75 lb Pull
• Length: 7.9"
• Height: 5.77"
• Weight: 30 oz (Unloaded)
• Action: Single Action
• Safety: Ambi Thumb & Grip Safety
• Optic Ready: Yes – RMR Footprint
• Optic Mount Thread: 6/32 TPI
• Magazine: 17-Round OEM Checkmate (2 Included)

? Optics Mounting Information

• Footprint: RMR (Trijicon Pattern)
• Mount Thread Spec: 6/32 TPI
• Recommended Torque: 10.2–11.9 in-lb
• Rear Sight: Glock Dovetail (on Plate), Tisas Dovetail Cut Slide
• Use with: Blue Thread Locker (71 in-lb breakaway rating)

⚠️ California Proposition 65 Warning

This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

? Ideal For

• Tactical Shooters & Professionals
• Home & Personal Defense
• Red Dot Pistol Users
• Training & Range Days