SDS Arms is pleased to announce the availability of the MAC-IX Slip Trip & Shim Kit, developed to support compatibility between the Military Armament Corp MAC-IX platform and the A&S Designs ARC-FIRE V2 forced reset trigger (FRT).
As the MAC-IX continues to grow in popularity, so does the demand for aftermarket accessories and customization options. The Slip Trip & Shim Kit represents another addition to the expanding MAC-IX accessory ecosystem, offering owners an additional configuration option for their pistol-caliber carbine.
Expanding the MAC-IX Platform

Since its introduction, the MAC-IX has established itself as a distinctive 9mm platform, combining familiar AR-style controls with a compact, direct-blowback operating system and compatibility with MP5-pattern magazines.
One of the goals behind the MAC-IX platform has been to encourage aftermarket development and provide owners with opportunities to personalize their firearms.
The introduction of the Slip Trip & Shim Kit continues that effort by supporting compatibility with the genuine A&S Designs ARC-FIRE V2 trigger system.
MAC IX Slip Trip & Shim Kit - SDS Arms
MAC-IX Slip Trip & Shim Kit Compatibility
The MAC-IX Slip Trip & Shim Kit is intended for use with the genuine A&S Designs ARC-FIRE V2. Compatibility should not be assumed with other forced reset trigger designs, aftermarket trigger systems, or firearm platforms.
Owners should review all manufacturer documentation and verify that their firearm, trigger components, and accessories meet the applicable compatibility requirements before proceeding with any modifications.
For technical information about the ARC-FIRE V2, visit the A&S Designs website.
A&S Designs Arc Fire V2 Trigger Kit
MAC-IX FRT Install Video
To accompany the release, SDS Arms has produced a video introducing the Slip Trip & Shim Kit and discussing its intended application with the MAC-IX and ARC-FIRE V2 platform.
The video provides an overview of the components and highlights important manufacturer compatibility considerations.
For questions concerning the ARC-FIRE V2 trigger system, owners should consult A&S Designs directly. Questions regarding the MAC-IX platform and its supported accessories may be directed to SDS Arms Customer Service.
Continuing to Support the MAC-IX Community
The MAC-IX has quickly developed a following among enthusiasts who appreciate its combination of familiar controls, compact dimensions, and expanding aftermarket support.
From optics and furniture to platform-specific accessories, SDS Arms remains committed to supporting the MAC-IX community and working with aftermarket manufacturers to broaden the platform's capabilities.
The MAC-IX Slip Trip & Shim Kit is another example of that ongoing development, and additional accessory announcements are anticipated as the platform continues to evolve.
For more information about the MAC-IX and its accessory ecosystem, visit SDSArms.com.
Important Notice: Firearm modifications should be evaluated and performed by a qualified gunsmith. Owners are responsible for compliance with applicable federal, state, and local laws. The legal treatment of forced reset triggers may vary by jurisdiction and change over time. Always consult current manufacturer guidance and applicable legal requirements before modifying a firearm.