Henry Big Boy Side Gate X Model .357 Magnum Lever Action Rifle - Black

The Henry Big Boy Side Gate X Model .357 Magnum lever action rifle brings modern versatility to a classic American platform. Built on Henry's proven Big Boy action, this compact rifle chambers .357 Magnum and .38 Special, making it ideal for hunters and sport shooters who want a handy, hard-hitting rifle that doesn't sacrifice capacity or convenience. The side gate loading system—a significant upgrade from traditional tube-fed lever guns—lets you top off the magazine quickly without cycling the action, a real advantage in the field or at the range. At 7.3 pounds and just 36.3 inches overall, it's nimble enough to handle tight terrain while the 17.4-inch round blued barrel delivers the velocity and accuracy you need for medium-range hunting and varmint work.

This rifle is built for shooters who appreciate modern conveniences without abandoning the soul of a lever gun. The black synthetic pistol-grip stock with a 14-inch length of pull gives you a secure, ergonomic hold, and the solid rubber recoil pad tames the .357's mild report. Fiber optic sights front and rear come standard, offering quick target acquisition in low light—no batteries required. The threaded barrel accepts suppressors or muzzle devices, opening options for quiet hunting or range work. Large loop lever ensures smooth, fast cycling even with gloved hands, while M-Lok and Picatinny rail sections let you mount accessories exactly where you need them.

Henry drilled and tapped the receiver for scope mounting, so if open sights aren't your style, the included BB-RSM mount gets you behind glass in minutes. The transfer bar safety is reliable and intuitive. Whether you're hunting hogs, deer, or varmints, or simply putting rounds downrange, the Big Boy Side Gate X delivers the blend of tradition and practicality that makes lever guns enduringly popular among hunters and enthusiasts who refuse to compromise.

Key Features

• Side gate loading system for fast magazine topping without cycling the action
• Chambers .357 Magnum and .38 Special for versatile hunting and range use
• Fiber optic front and rear sights for rapid target acquisition in dim conditions
• Threaded barrel ready for suppressors and muzzle devices
• Large loop lever for smooth operation with gloves or in cold weather
• M-Lok and Picatinny rail sections for modern accessory mounting
• Drilled and tapped receiver with BB-RSM scope mount included
• Black synthetic pistol-grip stock with rubber recoil pad
• Compact 36.3-inch overall length and 7.3-pound weight for easy handling
• Transfer bar safety for reliable protection

Specifications

Frequently Asked Questions

Is the Henry Big Boy Side Gate X compatible with both .357 Magnum and .38 Special ammunition?

Yes. The rifle is chambered for .357 Magnum and safely fires .38 Special rounds as well, giving you flexibility in ammunition selection and cost.

What's included with the rifle, and is a scope mount ready to go?

The rifle ships with fiber optic sights, swivel studs, large loop lever, M-Lok and Picatinny rail sections, a threaded barrel, and the BB-RSM scope mount pre-assembled on the drilled and tapped receiver.

How does the side gate loading system work, and what's the advantage?

The side gate allows you to load rounds directly into the magazine without cycling the lever action, making it faster and more convenient to top off your ammunition in the field or between shooting strings.

Can I use a suppressor on this rifle?

The barrel is threaded, so you can attach a suppressor or other muzzle device that fits the thread pitch. Verify thread specifications with the manufacturer or your gunsmith before attachment.

What is the length of pull, and will it fit most shooters?

The length of pull is 14 inches, a standard measurement that works well for average adults. If you require a longer or shorter stock, consult Henry or a gunsmith about custom options.