The ZRO Delta Ready Series ZR01 is a full-size AR-15 semi-automatic rifle chambered in 223 Wylde with a 16-inch Black Nitride threaded barrel. It has a 30+1 round capacity and uses a 15-inch M-LOK aluminum handguard. The receiver is aluminum and the stock is adjustable synthetic. 
 

Key Specifications 

• Brand: ZRO Delta 
• Model: ZR01 
• Caliber: 223 Wylde 
• Action: Semi Auto 
• Capacity: 30+1 rounds 
• Barrel Length: 16 inches 
• Color/Finish: Black 
   

Detailed Features 

• 16-inch Black Nitride threaded barrel 
• 15-inch M-LOK aluminum handguard 
• Adjustable synthetic stock with A2 grip 
• Black aluminum receiver 
• Threaded muzzle for muzzle device attachment

Owners of the ZRO Delta Ready Series ZR01 often cite it as a solid entry into the AR-15 market at a practical price. The Black Nitride barrel finish gets consistent positive mentions for corrosion resistance and ease of cleaning.

The 15-inch M-LOK handguard is generally well regarded for giving a full-length gripping surface without excessive weight. Some owners note the A2 grip is a basic starting point and swap it early, while others leave the rifle largely stock and report it runs reliably with standard ammunition.

Value is the most common theme in ZR01 owner feedback. Buyers who want a functional, no-frills AR-15 with a threaded barrel and M-LOK out of the box tend to be satisfied. Those looking for premium components at the same price point sometimes compare it unfavorably to competitors, but most agree the Ready Series ZR01 works as advertised.