The Rock Island Armory AL3.1 is a .357 Magnum / .38 Special DA/SA revolver with a 2-inch full-shroud barrel, 6-round capacity, stainless steel frame, and finger-grooved rubber grip. It weighs 1.5 lbs (24 oz) and measures 6.75 inches overall. 
 

Key Specifications 

• Model: AL3.1 
• Caliber: .357 Magnum / .38 Special 
• Action: Double/Single Action (DA/SA) 
• Capacity: 6 rounds 
• Barrel Length: 2 inches 
• Overall Length: 6.75 inches 
• Weight: 1.5 lbs (24 oz) 
• Sights: Fixed Ramp Front / Fixed Rear 
• Grip Material: Black Finger Grooved Rubber 
• Finish: Stainless Steel Frame 
   

Features 

The full-shroud barrel adds durability and contributes to recoil management when firing .357 Magnum. DA trigger pull runs 4 to 6.5 lbs single-action and up to 13 lbs double-action, which is typical for a compact revolver. The stainless steel frame holds up to corrosion and regular use. .357 Magnum / .38 Special compatibility gives the option of training on cheaper .38 Special before using defensive Magnum loads. Fixed sights on a 2-inch barrel are calibrated for practical defensive distances.

The AL3.1 is liked for its compact form factor that conceals easily and the stainless construction that owners trust for durability. Price is a genuine advantage compared to other revolvers in this class, and many buyers treat it as a cost-effective option without major quality sacrifices.

Weight occasionally surprises owners who expected something lighter for the size. Trigger pull, especially in double-action, is cited as stiff by some shooters and affects accuracy until the stroke is practiced. The .357 Magnum recoil in a compact lightweight revolver is frequently noted as the most demanding aspect, and experienced reviewers tend to recommend starting with .38 Special loads for newer shooters.