Henry Big Boy X Model .357 Magnum/.38 Special Lever-Action Rifle, Threaded 17.4 in Barrel, Fiber-Optic Sights, Synthetic Stock, 7+1
The Henry Big Boy X Model (H012MX) pairs classic lever-action operation with practical, modern features. This .357 Magnum/.38 Special rifle is built with a steel receiver and barrel, a rugged black synthetic stock and fore-end, and a 17.4-inch threaded barrel with a knurled protector. It adds fiber-optic sights, a dual loading system, and integrated accessory mounting points—all made in Rice Lake, Wisconsin.
Built to be versatile, this Big Boy X includes a large-loop lever, a bottom 5-slot Picatinny accessory rail with side slots, and a receiver drilled and tapped for scope mounts with filler screws in place. The rifle offers a 7+1 capacity and a 1:16 RH twist, with an overall length of 36.3 inches and a 14.25-inch length of pull. Its matte blued finish and bright, excellent bore round out a configuration that is ready to run.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present from prior use. Please refer to the photos for detailed views.
What’s Included
- Henry Repeating Arms Big Boy X Model .357 Magnum/.38 Special lever-action rifle (Model H012MX)
- Knurled 5/8x24 thread protector (installed)
The X-series configuration centers on a steel, round-profile barrel that is factory threaded 5/8x24 and capped with a knurled protector. The 1:16 RH twist supports common .357 Magnum and .38 Special loads, while the matte blued finish provides an even, non-reflective appearance across the barrel and receiver.
Henry’s dual loading system gives you options: top off through the side loading gate or remove the inner magazine tube for unloading and administrative handling. Capacity is 7+1 in this caliber, and the smooth lever-action is paired with a large-loop lever for an easy, gloved grasp.
Bright fiber-optic sights come standard, with a green front blade and a fully adjustable orange rear. For optics mounting, the receiver is drilled and tapped and fitted with filler screws. Accessory setup is straightforward thanks to the bottom 5-slot Picatinny rail and additional side accessory slots on the fore-end.
The durable black synthetic stock and matching fore-end feature a pistol-grip shape and a rubber recoil pad. Dimensions are well-balanced for field or range use, with a 36.3-inch overall length and a 14.25-inch length of pull. This rifle is made in the USA in Rice Lake, Wisconsin.




