The Henry Big Boy Side Gate Carbine in .45 Colt is a shorter, lighter variant of the Big Boy series, with a 16.5-inch octagon barrel and a 7+1 capacity. The carbine length brings overall length down to 35 inches and weight to 7.75 lbs, making it noticeably handier than the full-size Big Boy. 
 

Key Specifications 

• Model: Big Boy Side Gate Carbine 
• Caliber: .45 Colt (LC) 
• Action Type: Lever Action 
• Capacity: 7+1 rounds 
• Barrel Length: 16.5 inches 
• Overall Length: 35 inches 
• Weight: 7.75 lbs 
• Stock Material: American Walnut 
• Receiver Finish: Polished Brass 
• Sights: Brass Bead Front / Adjustable Semi-Buckhorn Rear 
   

Detailed Features 

The side gate loads from the right side of the receiver, which allows topping off without removing rounds from the tube. It functions alongside the traditional tube loading from the front, giving two loading options. 
 
The transfer bar safety blocks the firing pin unless the trigger is fully depressed with the hammer in motion, preventing discharge from drops or external impacts. 
 
The polished brass receiver and American walnut stock finish are consistent with the broader Big Boy line. The adjustable semi-buckhorn rear sight adjusts for elevation to suit different loads. 
 

Usage 

The .45 Colt in carbine length is well suited for cowboy action shooting competitions, where the short overall length and pistol-caliber cartridge are practical advantages. The 16.5-inch barrel also makes it easier to handle in tight quarters than the 20-inch version. At moderate ranges, .45 Colt is effective on deer-sized game.

Owners of the Henry Big Boy Brass .45 Colt Carbine consistently compliment the aesthetics -- the brass receiver and walnut stock combination draws favorable attention at the range and in competition. The lever action cycles smoothly and is one of the most frequently mentioned positives.

For cowboy action shooting, the carbine gets strong endorsements. The short overall length, pistol-caliber chambering, and reliable cycling are exactly what the format calls for. The side gate loading feature gets practical praise from competitors who need to top off quickly between stages.

Criticisms cluster around two areas: weight and price. At 7.75 lbs, it's heavier than some competing lever-action carbines, which a few hunters note when carrying all day. The price is also a recurring point -- Henry rifles carry a premium over some competitors, and buyers debate whether the fit, finish, and brand history justify the gap.

Accuracy at typical handgun-cartridge ranges is generally described as good. Some buyers specifically mention that .45 Colt stopping power on medium game is adequate but not what you'd choose for longer shots.