The Military Armament Corp MAC 5K is a 9mm pistol-caliber platform with a 5.8-inch barrel and a capacity of 30+1 rounds. It comes with a Franklin Armory binary trigger installed and ships with two 30-round magazines, a sling, cleaning kit, and case. The finish is black. 
 

Key Specifications 

• Brand: Military Armament Corp 
• Model: MAC 5K 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 5.8 in 
• Capacity: 30+1 
• Color/Finish: Black 
   

Detailed Features 

• Franklin Armory binary trigger installed at factory 
• 5.8-inch barrel 
• Includes two 30-round magazines, sling, cleaning kit, and case 
• 9mm chambering

Owners of the MAC 5K are drawn primarily to the Franklin Armory binary trigger as an included feature rather than an aftermarket addition. The compact 5.8-inch barrel keeps the platform short and handy, and the 9mm chambering makes ammunition relatively affordable for high-volume shooting.

The included accessories (two magazines, sling, cleaning kit, and case) get positive mentions as a complete-package deal. Some owners note the binary trigger takes adjustment to use confidently, and a small number prefer to swap it out for a standard trigger after purchase.

The MAC 5K occupies an unusual niche, and opinions split on the overall build quality relative to price. Shooters who bought it primarily for the binary trigger setup tend to be satisfied; those expecting match-grade fit and finish are sometimes disappointed.