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Henry · Rifle

Henry Big Boy X Model

Lever action · .357 Magnum · introduced 2020

Also known as Henry H012MX, Big Boy Side Gate X Model

About the Henry Big Boy X Model

The Henry Big Boy X Model is an American lever-action rifle chambered in .357 Magnum (which also fires .38 Special), manufactured by Henry Repeating Arms. A modernized take on Henry's classic Big Boy, the X Model swaps traditional brass and walnut for black synthetic furniture with M-Lok slots and a Picatinny rail, adds a 5/8x24 threaded muzzle for suppressors and muzzle devices, and combines a removable tubular magazine with a side loading gate so the seven-round tube can be topped off without removal. It features fiber optic sights, a large loop lever, a transfer-bar safety, and a receiver drilled and tapped for optics.

Henry Repeating Arms revived the storied Henry name in the 1990s and built its reputation on traditional brass-framed lever guns; the X Model line was launched to bring the lever action into the tactical and suppressor era with synthetic furniture, accessory rails and a threaded barrel.

Henry Big Boy X Model specifications

General

Type
Rifle
Action
Lever action
Firing mechanism
Hammer-fired
Trigger
Single action
Calibres
.357 Magnum
Magazine capacity
7 rounds
Magazine
Tubular

Dimensions

Barrel length
442 mm (17.4 in)
Overall length
922 mm (36.3 in)
Weight (empty)
3.31 kg (7.30 lb)

Barrel

Rifling twist
1:16 in (406 mm)
Rifling
Right hand

Materials

Barrel
Steel
Receiver / frame
Steel
Stock
Synthetic
Finish
blued

Performance

Muzzle velocity (typical)
580 m/s (1903 fps)
Muzzle energy (typical)
1362 J (1005 ft·lb)
Effective range
150 m

History

Introduced
2020
Production status
In production
Country of origin
US
Designer
Henry Repeating Arms

Features

  • Side loading gate
  • Removable tube magazine
  • Threaded muzzle
  • Fiber optic sights
  • M lok slots
  • Picatinny rail
  • Large loop lever
  • Drilled and tapped
  • Sling swivel studs
  • Rubber recoil pad

Safety

  • Transfer bar

Chambered for .357 Magnum but also accepts .38 Special. The 5/8x24 threaded barrel and dual side-gate/removable-tube loading are the defining features of the X series versus the standard Big Boy.

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