The Retay USA Ace is a full-size semi-automatic shotgun chambered in 12 gauge with a 3.5-inch chamber. It has a 28-inch vent rib barrel and a 3+1 capacity. The receiver is drilled and tapped, and the stock uses an adjustable shim system in Realtree Max-7 pattern. 
 

Key Specifications 

• Brand: Retay USA 
• Model: Ace 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 3+1 Rounds 
• Barrel Length: 28" 
• Color/Finish: Realtree Max-7 
   

Detailed Features 

• 28" vent rib barrel with 3.5" chamber for heavy loads 
• Drilled and tapped receiver for optic mounting 
• Adjustable shim stock system for fit customization 
• Realtree Max-7 camo pattern designed for marsh and water environments 
• Full-size frame with 3+1 capacity

The Retay Ace in Realtree Max-7 attracts waterfowl hunters specifically, with many citing the 3.5-inch chamber and Max-7 pattern as the combination that drove their purchase. The 28-inch barrel suits open-water shooting where swing and lead distance matter more than maneuverability.

Field reports are mixed in the same ways seen across the Ace line. Cycling reliability with heavier loads is generally praised, but owners who run light target loads report failures to cycle until the gun is broken in or the load is swapped. The Max-7 finish draws consistent compliments for marsh and flooded timber work where its pattern was designed.

For value, opinions depend heavily on expectations. Buyers coming from budget pump guns find the Ace a meaningful step up; those comparing it to name-brand semi-autos at a similar price sometimes feel the fit and finish gaps are real. Aftermarket support remains a question mark for many long-term owners.