The HM Defense HM50B2 Gen2 .50 BMG in black is a bolt-action sniper rifle with a 29.25-inch match-grade barrel and a 10-round steel magazine (HM Defense part no. HM50B250BMGBLK). HM builds it in Ohio around a CNC-machined 7075-T6 billet upper and a billet lower receiver, with the company’s patented HMB bolt machined from 9310 steel. The muzzle is threaded 1-14 TPI, and a 14-inch free-floated Picatinny rail with an integral bipod mount carries the optic. An HM Target trigger, an ERGO Tactical Super Ambi grip and a CNC machined stock with an adjustable cheekpiece and length of pull complete the package. It is a rifle for shooters who want true .50 BMG reach at extended range.

Key Specifications

• The chambering is .50 BMG, a CIP-specified big-bore cartridge for extreme-range shooting.
• The barrel is a 29.25-inch, 8-groove match-grade design that is button rifled for accuracy.
• Rifling twist is 1:15, matched to heavy .50 BMG bullets.
• The muzzle is threaded 1-14 TPI, ready for a muzzle brake or other compatible device.
• The action is a bolt action with a left-side bolt and right-port ejection.
• The rifle feeds from a 10-round steel military-grade magazine, so a full load is ready to go.
• A 14-inch 1913 Picatinny rail is free floated, machined from aircraft-grade aluminum with an integral bipod mount.
• The receiver is a 7075-T6 billet upper with a flat-top 1913 rail, paired with a billet lower for stiffness.
• The trigger is an HM Target trigger with a clean break, which helps precision at long range.
• The stock is CNC machined with an adjustable cheekpiece and length of pull, and it includes a monopod mount.

Frequently Asked Questions

Is the HM50B2 Gen2 a bolt-action or a semi-auto? It is a bolt-action rifle. HM lists the HM50B2 Gen2 as a .50 BMG bolt action sniper rifle with a left-side bolt and right-port ejection.

Is the muzzle threaded? Yes. The muzzle is threaded 1-14 TPI.

What is not included with the rifle? HM states that the monopod, scope and scope mount are not included. The rifle comes in a box with laser-cut foam.

Buy the HM Defense HM50B2 Gen2 .50 BMG Bolt-Action Rifle, Black, 29.25-Inch Threaded Barrel

A .50 BMG bolt gun is a long-range commitment, and this one is built in the USA with billet receivers and a free-floated rail. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more rifles from HM Defense while you are here.