The Shark Coast Tactical Maxim is a 5.56 NATO AR-pattern pistol built on an aluminum receiver with a Picatinny top rail. It has a 10.5-inch chrome moly barrel finished in black nitride, with a threaded muzzle and flash hider, wrapped in an M-LOK handguard. The pistol ships with a polymer SB Tactical SBA3 brace in place of a shoulder stock and feeds from a 30-round magazine, giving it a compact footprint for close-range use. 
 

Key Specifications 

• Brand: Shark Coast Tactical 
• Model: Maxim 
• Caliber: 5.56 NATO 
• Action: Semi-Auto 
• Capacity: 30+1 
• Barrel Length: 10.5 in 
• Barrel Finish: Black Nitride 
• Barrel Material: Chrome Moly Steel 
• Receiver Material: Aluminum 
   

Detailed Features 

• Threaded 10.5-inch barrel fitted with a flash hider. 
• M-LOK handguard for mounting lights, grips, or other accessories. 
• Polymer SB Tactical SBA3 brace in place of a fixed stock. 
• Picatinny rail receiver for optics mounting. 
• Thumb safety and a 30-round magazine.

Owners of AR pistols like the Maxim tend to focus on how well the smaller build holds up compared to a full-size rifle, and a chrome moly barrel with a nitride finish is the kind of detail that reassures buyers who plan to run the gun hard. Some owners note that AR pistols in general run a bit louder and snappier than a rifle-length gun, which is simply a function of the shorter barrel rather than a flaw in this particular build.

The SBA3-style brace is a common point of discussion. Owners who shoot off-hand or from a bag like the added stability it offers over a bare pistol buffer tube, while others swap it out entirely for their preferred brace or stock configuration once state law allows it. The M-LOK handguard makes that kind of customization straightforward.

Because the Maxim uses a standard AR-pattern lower and upper, most owners find parts and magazines are easy to source, and that compatibility is often cited as the platform's biggest selling point over more proprietary pistol designs.