The Henry Big Boy .45 Colt Lever Carbine has a 16.5" octagonal barrel, a polished hardened brass receiver, and blued metalwork. At 7.8 lbs and 35" overall it's compact for a lever rifle, and the large loop lever makes it easy to cycle wearing gloves. 
 

Key Specifications 

• Model: Big Boy Carbine 
• Caliber: .45 Colt 
• Action: Lever Action 
• Capacity: 7 rounds + 1 in chamber 
• Barrel Length: 16.5 inches (Octagon) 
• Overall Length: 35 inches 
• Weight: 7.8 lbs (124.8 ounces) 
• Finish: Blued Barrel & Polished Hardened Brass Receiver 
   

Detailed Features 

The brass receiver paired with the blued octagonal barrel gives the rifle a period-correct look that Henry's Big Boy line is known for. The large loop lever is a practical feature for gloved hands or shooters with larger fingers. Transfer bar safety prevents firing without a deliberate trigger pull. 
 
Sights are a brass bead front and an adjustable semi-buckhorn rear with diamond insert. The .45 Colt chambering delivers good stopping power at carbine distances, and the octagonal barrel provides some additional sight radius and a traditional profile. 
 
The 16.5" barrel makes this the shortest configuration in the Big Boy lineup, which helps in tighter spaces while still being clearly a rifle rather than a pistol.

The Big Boy Carbine attracts a lot of positive commentary on the brass-and-blued aesthetic and the smooth lever action. Owners appreciate the compact size and the .45 Colt caliber's balance of power and manageable recoil. The large loop lever gets specific praise for ease of operation.

At 7.8 lbs, it runs heavier than some comparable carbines, which some buyers find surprising given the short barrel. Price draws the usual comparison discussion against other lever-action brands. Henry's customer service reputation comes up positively in most threads.

Overall the sentiment is strongly positive, with the combination of looks and reliable function being the main draws.