1. Create your own Henry Heirloom
  3. Lever Action Pistols

Henry Repeating Arms Big Boy Mares Leg 45 Colt Side Gate Lever-Action Heirloom Pistol

HENRY REPEATING ARMS Big Boy Mares Leg 45 Colt Side Gate Lever-Action Heirloom Pistol
60 Day Production Lead Time

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Choose your own personalized serial number

For a limited time between now and August 31st, 2025, you can personalize your very own serial number on this Henry firearm. Make it the perfect gift, or keep it in your family to pass down for generations.

You can add your family's name into your serial number, or make it the birthdate of someone you care about. The serial number is entirely up to you!

Whether or not you already own a Henry firearm or if you haven't come around to it yet, we think this is an amazing opportunity to personalize your own gun - something firearm manufacturers rarely allow.

Henry Rifles Customized Serial Number
Serial number in photo has been enhanced to increase visibility.

How it works

Place your order anytime before August 31st, 2025.

These Henry rifles are made-to-order and are not currently in stock.

Production lead time on this firearm is 60 days. If ordered by August 31st, estimated delivery time is mid December, before Christmas.

Choosing your serial number:

  • You can enter your personalized serial number during the checkout process.
  • There is a 12 Character Max-Limit - no dashes or spaces. Must be alpha-numeric (At least one letter and one number).
  • The letter O is not permitted as part of a serial number. The number zero (0) is permitted, but must be combined with another numerical digit 1-9
  • The ATF requires at least one numeric digit within the serial number.
  • If ordering more than one of the same model, please remember that each firearm must have its own unique serial number.
  • Please choose an acceptable second choice serial number. In the event that your first choice is unavailable, this will prevent any delays in making your firearm.
  • Important: All sales of Henry Heirloom rifle are final. Henry Heirloom models and serial number choices cannot be altered or modified once an order is placed with Henry. Please ensure that you select the correct model and provide 2 serial numbers in accordance with the above.

Product Description

What's in the Box

  • Henry Big Boy Mare's Leg 45 Colt Side Gate Lever-Action Pistol
  • Owner's Manual

Back in the heyday of the TV Western, Steve McQueen, the star of “Wanted: Dead or Alive,” rode across black-and-white screens toting a sidearm like nothing any lawman or outlaw had carried before. A cut-down, modified lever action rifle, this iconic firearm could be holstered like a pistol but fired with the speed of a lever gun. Nicknamed the Mare’s Leg, this innovative weapon brought swift justice to outlaws every week and rose to fame as the real star of the short-lived show.

Firearm Features

  • Transfer Bar Safety
  • Large Loop Lever
  • Saddle Ring
  • Side Loading Gate
  • Polished Hardened Brass Receiver

Product Specifications

  • Manufacturer: Henry
  • Model: Big Boy Mare's Leg
  • Caliber: 45 Colt
  • Barrel Length: 12.9" Octagon
  • Twist Rate: 1:16
  • Overall Length: 25"
  • Finish: Blued
  • Stock: American Walnut
  • Sights: Brass Bead Front; Fully Adjustable Semi-Buckhorn Rear with Diamond Insert; Drilled and Tapped
  • Magazine Capacity: 5
  • Additional Features: Large Loop; Side Gate

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