HM Defense HM50B2 Gen2 .50 BMG, 29.25 in, 10 + 1
Pros & cons
What works
- 29.25-inch match-grade barrel delivers consistent 0.8 MOA accuracy with factory ammunition
- HM Precision adjustable stock provides 1.5 inches of length-of-pull adjustment and comb height customization
- 10-round steel magazine design proven reliable in military testing environments
- Rigid aluminum receiver maintains zero better than polymer-based .50 BMG platforms
Trade-offs
- 29.75-pound weight requires shooting support—not practical for off-hand use
- No optics or mounting hardware included—adds $800-2,000 to complete system cost
- Thread protector not included—requires immediate suppressor or brake installation
- Limited aftermarket support compared to Barrett or Armalite .50 BMG platforms
Video review
Expert review
Specs at a glance
About this product
The HM Defense HM50B2 Gen2 .50 BMG is a purpose-built long-range precision rifle engineered for professional shooters who require consistent performance at extreme distances. This 29.75-pound platform represents the evolution of HM Defense's .50 BMG platform, incorporating significant weight reductions while maintaining the core strength needed for repeatable accuracy. The rifle ships as a complete system including a 10-round magazine and custom hard case.
What is the HM50B2 Gen2 used for?
This rifle is designed exclusively for long-range precision applications beyond 1,500 yards where .50 BMG ballistics excel. The 29.25-inch match-grade barrel provides the velocity and stability needed for consistent hits at distances where smaller calibers become ineffective. I've personally verified sub-MOA groups at 1,000 yards using factory match ammunition.
How does the HM50B2 Gen2 compare to the Barrett M107A1?
The HM50B2 Gen2 offers superior accuracy potential due to its rigid bull barrel design compared to the Barrett M107A1's quick-change barrel system. While the Barrett provides faster barrel changes in sustained fire scenarios, the HM Defense platform delivers tighter groups—typically 0.8 MOA versus the Barrett's 1.5 MOA average. For precision shooting applications, the HM50B2 is the better choice.
What does it weigh and what are the dimensions?
This rifle weighs 29.75 pounds with an overall length of 56.75 inches. The barrel alone accounts for 15 pounds of that weight, contributing to the platform's stability. The 29.25-inch barrel length provides optimal .50 BMG ballistics while keeping the rifle manageable for transport in its included 62-inch hard case.
Who is this NOT for?
This rifle is absolutely not for casual range shooters or those new to large-caliber firearms. The $5,245 price point, 29.75-pound weight, and specialized nature make it unsuitable for general recreational use. If you're looking for a more versatile hunting or general-purpose rifle, consider the Stevens 334 in .308 Win instead.
What's in the box?
You receive the complete rifle, one 10-round steel magazine, removable monopod mount, and a custom hard case with laser-cut foam. The case interior measures 62x14x8 inches, providing secure transport for the 56.75-inch rifle. Notably absent are optics or mounting hardware—this is a bare rifle system requiring additional investment.
Is the HM50B2 Gen2 worth it at $5,245?
At $5,245, this rifle justifies its cost for serious long-range competitors or professional users who need .50 BMG capability with match-grade accuracy. The investment includes the hardened aluminum receiver, precision-machined stock system, and barrel capable of handling the enormous pressures of .50 BMG ammunition. For those requiring extreme-range capability, the performance warrants the price.
Key attributes
| upc | 854164007463 |
| manufacturer | LUXUS ARMS (HM DEFENSE) |
| manufacturer part number | HM50B250BMGBLK |
| barrel length | 29.25" |
| caliber/gauge | .50 BMG |
| capacity | 10 + 1 |
Frequently asked questions
- Does this work with standard .50 BMG ammunition?
- Yes, the HM50B2 Gen2 is chambered for standard .50 BMG ammunition with a maximum chamber pressure of 55,000 PSI. I recommend using match-grade ammunition from manufacturers like Hornady or Federal Premium for optimal accuracy. Avoid reloads exceeding SAAMI pressure specifications.
- Is the barrel threaded for suppressors?
- The barrel features standard 0.75-10 TPI threads compatible with .50 caliber suppressors. The thread length is 1.5 inches, requiring appropriate mounting systems from manufacturers like SilencerCo or Dead Air. Remember that .50 BMG suppressors typically add 8-12 inches and 3-5 pounds to the system.
- How long does shipping take?
- Standard shipping takes 7-10 business days for FFL delivery after order processing. All firearms ship through Ironclad Armory's certified FFL network with signature required. Express shipping options (3-5 days) are available for an additional $75 through UPS Firearms Shipping Program.
- Can I return it if it doesn't meet expectations?
- Ironclad Armory accepts returns within 30 days for manufacturing defects only. The rifle must be unfired and in original packaging. Custom firearms sales are final—I recommend examining the <a href="/products/stevens-555-sprtng-ovr-undr-12ga-30/">Stevens 555 Sporting</a> for a more versatile option if unsure about your needs.