Henry H012GMCC Big Boy Case Hardened Side Gate 357 Mag/38 Spl 20″ Barrel


SKU: HENH012GMCC Categories: , Tag:

We made our initial centerfire reputation with the handgun-calibered Big Boy, so it was a logical choice to expand the steel-framed case-hardened finish into that line-up, and we’ve got six hard-workin’ lever actions here that merge the classic looks of those beautifully-done case colors and octagonal barrels with the practicality of a side loading gate and lighter weight than the original brass models.

This model features clean checkering on fore-end and straight-wrist stock, our adjustable buck and bead sights, an automatic in-hammer transfer bar safety, and our best-of-both-worlds side loading gate and removable tube magazine configuration.

Paired with a trusty revolver in the same caliber, or as a stand-alone trail partner, the rifle takes to a saddle scabbard like it was born there, and the carbine carries just as trim through the brush on foot as it does in and out of the truck or Jeep. These steel Big Boys are also drilled and tapped for scope mounts, and coupled with our dependable smooth actions and built-in accuracy, they’re every bit as good on the Fall hunt as they are on Saturday afternoon paper at the range.

Put some color in your life today, and make sure it says “Henry” on the barrel.



Canada Legal Classification Non-Restricted Action Lever
Handedness Right Optic Interface Drilled and Tapped BB-RSM
Rear Sight Fully Adjustable Semi-Buckhorn w/ Diamond Insert Front Sight Drift Adjustable Brass Bead
Grip Type Stock Integrated Straight Checkered Pistol Grip Cap N/A
Trigger Type Standard Trigger Compatiblity Henry H012, H006
Min Trigger Pull (lbs) ~5 Max Trigger Pull (lbs) ~5
Observed Trigger Pull (lbs) ~5 Safety Transfer Bar
Manual Safety Position N/A Magazine Interface Fixed Tube
Magazine Compatibility Henry H012M, H006M Capacity 10
Default Length (in; mm) 37.5; 952.5 Min Length (in; mm) 37.5; 952.5
Max Length (in; mm) 37.5; 952.5 Width (in; mm) ~1.4; 3.5
Height (in; mm) ~9.4; 240 Weight (lbs; kg) 7.84; 3.556164
Accessory Interface Sling Stud Buttstock, Forearm Cap


Lever Throw Angle (Degrees) ~80 Action Size Standard
Receiver Type H012GM Lower Receiver Material Steel
Lower Receiver Finish Color Case Hardened Upper Receiver Material Steel
Upper Receiver Finish Color Case Hardened Stock Interfacing Mechanism Rear Tang Screw Threaded Into Receiver
Stock Interfacing Mechanism Material Steel Stock Interfacing Mechanism Finish Blued
Barrel Interfacing Mechanism Direct to Receiver Barrel Securing Mechanism Barrel Threads
Barrel Securing Mechanism Material Steel Barrel Securing Mechanism Finish Blued
Recoil Lug None Recoil Lug Material N/A
Recoil Lug Finish N/A Feed Type Push
Ejection Spring Loaded, Receiver Mounted Ejection Direction Right
Bolt Type 1 Piece Bolt Bolt Material Steel
Bolt Finish Blued Bolt Head Type Fixed to Bolt
Bolt Lock Rear Locking Block Operating Handle Lever
Operating Handle Material Steel Operating Handle Finish Blued
Bolt Hold Open None Bolt Release None
Trigger Guard Type Action Lever Trigger Guard Material Steel
Trigger Guard Finish Blued Trigger Guard Engraving None
Magazine Release Type None Magazine Release Position N/A
Magazine Cutoff None Anti-Release Magazine Lock Mechanism Magazine Locking Notch


Stock Type Straight Grip Stock Fit Henry H012G, M (non-X); H009 (non-X), H010BG, H024
Stock Material American Walnut Stock Finish Satin
Buttpad Rubber Solid Recoil Pad Black Adjustable Length of Pull No
Default Length of Pull (in; cm) 14; 35.56 Min Length of Pull (in; cm) 14; 35.56
Max Length of Pull (in; cm) 14; 35.56 Adjustable Comb No
Min Drop at Comb (in; cm) ~0.8; 2 Max Drop at Comb (in; cm) ~0.8; 2
Min Drop at Heel (in; cm) ~1; 2.5 Max Drop at Heel (in; cm) ~1; 2.5
Adjustable Cast No Adjustable Pitch No


Forend Type Mounted to Receiver Forend Fit Henry H012, H009 (non-B or GCC), H010 (non-B or GCC), H018
Forend Material American Walnut Forend Finish Satin w/ Checkering, Case Hardened Forend Cap


Barrel Length (mm) 508 Caliber Marking .357 MAG/.38 SPL
Chamber Size Standard Pressure Rating Standard 357 Mag
Barrel Profile Octagon Barrel Material Steel
Barrel Finish Blued Chamber Finish Standard
Rifling 6 Groove Twist Rate (in) 1:16
Muzzle Device None Muzzle Thread (in) None

Additional Information:

Model Number H012GMCC
Distributor Item Number 1524-0221


Manufacturers, importers, suppliers, and distributors may make changes to their products without fanfare. Such changes can lead to discrepancies between the advertised product and the actual product in inventory. While International Shooting Supplies Ltd. endeavors to correctly describe the actual product in inventory, we will not be responsible for unintentional inaccuracies in text and images of the advertised product

Weight 4 kg
Dimensions 102.4 × 17.2 × 5.3 cm

357 Magnum, 38 Special





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