The MAC-11/VMAC9/MPA 2-Position A.R.T. System is designed for compatible semi-automatic, closed-bolt MAC-pattern firearms.
Developed for traditional Cobray M11/9 platforms and comparable full-size 9mm MAC-pattern designs, this system is also compatible with select MPA Defender configurations.
TESTED COMPATIBILITY
The following platforms have been tested for compatibility:
- SWD / Cobray M-11/9
- FMJ M-11/9
- Leinad M-11/9
- Leinad PM-11
- Leinad CM-11
- MasterPiece Arms MPA30 (Top-Charging & Side-Charging)
- Velocity VMAC9
- Vulcan VMAC-9
Compatibility is limited to applicable semi-automatic, closed-bolt 9mm configurations.
Fitment may vary depending on manufacturer, production year, receiver dimensions, and aftermarket components.
IMPORTANT INSTALLATION INFORMATION
UPPER RECEIVER MODIFICATION REQUIRED
Installation requires additional clearance within the upper receiver to accommodate the A.R.T. reset lever.
Each kit includes a purpose-built alignment jig.
The clearance modification is intended to preserve normal firearm operation when the A.R.T. system is removed.
VMAC & COBRAY COMPATIBILITY NOTICE
Vmac/cobray models require removal of the denial bar
ADDITIONAL INFORMATION
- Designed for semi-automatic, closed-bolt 9mm MAC-pattern firearms.
- Not tested with open-bolt semi-automatic configurations.
- Compatibility may vary between manufacturers and production runs.
- Professional installation and safety inspection are recommended.
DESIGN CREDIT & DEVELOPMENT
The MAC-11 / VMAC9 2-Position A.R.T. System is a modified version of Toadlicker556’s open-source MPA FRD design.
Advanced Reset Technology has adapted the original design for steel manufacturing, with revisions intended to accommodate the timing and compatibility requirements of M-11-pattern platforms.
Original Design Credit: Toadlicker556
