The Shark Coast Tactical Liberty AR Patina is a 5.56x45mm NATO semi-automatic rifle with a 16-inch barrel and 30-round capacity. The barrel is 4150 CMV Melonite steel with a 1:7 twist rate and carbine-length gas system. An A2 flash hider is on the muzzle. The stock is a Magpul SL-K and the grip is a Magpul MOE. The finish is a distressed gray Cerakote. 
 

Key Specifications 

• Caliber: 5.56x45mm NATO 
• Barrel Length: 16 inches 
• Capacity: 30 rounds 
• Condition: New in Box 
• Finish Color: Distressed Gray Cerakote 
• Manufacturer: Shark Coast Tactical 
• Model: Liberty AR Patina 
• Action Type: Semi-Automatic 
   

Features 

 
The 4150 CMV Melonite barrel resists corrosion and holds up to extended use. The 1:7 twist stabilizes heavier projectiles well. The carbine-length gas system cycles smoothly with standard 5.56 loads. Magpul SL-K stock is adjustable for length of pull, and the MOE grip is a known quantity for comfort and control. The distressed gray Cerakote is the defining visual element — it looks like a working rifle.

Users generally like the Liberty AR Patina for the distressed gray finish, which gets called out as a distinctive aesthetic compared to standard black rifles. Build quality and feel are commonly described as solid.

Performance feedback is mostly positive — smooth operation and reliable function at the range. Some users mention the adjustable stock as a plus. The main criticisms are weight, noted as slightly heavier than expected, and price, which some find elevated relative to comparable AR-15s on the market. Overall reception leans positive.