The Savage Arms Model 64 FSS is a .22 LR semi-automatic rifle with a 21-inch stainless steel barrel and a black matte synthetic stock. At 5 lbs it's light enough for extended range sessions or casual small game work. 
 

Key Specifications 

• Caliber: .22 LR 
• Action: Semi-Automatic 
• Capacity: 10 rounds (detachable box magazine) 
• Barrel Length: 21 inches 
• Weight: 5 lbs 
• Safety: Manual thumb safety 
• Finish: Matte black synthetic stock with stainless steel components 
   

Detailed Features 

 
The straight blowback action is simple and proven for .22 LR cycling. The stainless barrel resists corrosion better than blued steel, which matters if the rifle will see outdoor use in wet conditions. 
 
The open sights are adjustable for windage and elevation. The receiver is drilled and tapped for a scope mount if you want to add optics. The detachable 10-round box magazine is a practical capacity for a semi-auto rimfire. 
 
The synthetic sporter stock is weather-resistant and requires no maintenance beyond wiping down. Manual thumb safety is straightforward to operate. 
 

Usage Scenarios 

• Target Practice and Plinking: The semi-auto action and 10-round mag keep shooting sessions moving. 
• Small Game Hunting: .22 LR at close to moderate ranges for squirrels, rabbits, and similar. 
• Training: Low recoil and low ammo cost make it practical for building fundamentals.

The Savage 64 FSS gets solid marks for its value proposition. Most people who buy it find it reliable enough for casual use, and the stainless barrel is frequently cited as a plus for durability. The light weight and low recoil make it accessible for newer shooters.

The main criticisms involve feeding and cycling issues with certain ammo brands. This comes up more than in reviews of pricier semi-auto rimfires. Some users also note the 10-round magazine capacity is adequate but limited if you want extended shooting sessions without frequent reloads.

Build quality is generally seen as fine for the price, though comparisons to more expensive rifles naturally expose some gaps. Overall it's well-regarded as a budget-friendly .22 semi-auto for casual shooting.