The Retay ACE-R is a semi-automatic shotgun chambered in 12 gauge with a 28-inch barrel and a 3.5-inch chamber. It holds 3+1 rounds and comes with a Mossy Oak Bottomland stock that has an adjustable shim system. The receiver is drilled and tapped for optic mounting. 
 

Key Specifications 

• Brand: Retay 
• Model: ACE-R 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 3+1 
• Barrel Length: 28 in 
• Color/Finish: Mossy Oak Bottomland 
   

Detailed Features 

• 28-inch barrel with 3.5-inch chamber 
• Mossy Oak Bottomland patterned stock 
• Adjustable shim system for stock fit 
• Receiver drilled and tapped for optics 
• 3+1 round capacity

Retay ACE-R owners generally regard it as a capable field gun at a competitive price. The 3.5-inch chamber gives flexibility for heavier loads, and the Mossy Oak Bottomland finish is popular with waterfowl and turkey hunters who want a low-visibility pattern.

The adjustable shim stock is a frequently cited positive, particularly among buyers who have struggled to find a good fit on other semi-auto shotguns. The drilled and tapped receiver is treated as a practical standard feature rather than a premium add-on.

Reliability with lighter target loads is the most common criticism. Some owners report the ACE-R needs a break-in period or heavier loads to cycle consistently. Those who shoot field and magnum loads tend to report no issues; clay and light-load shooters are more divided on whether reliability improves after break-in.