How the HRM-9 SMG’s Princeps Long Barrel recreates the legendary Grau iron sights in Modern Warfare 3
The Grau Legacy: Warzone’s Original Meta King
The Grau assault rifle represents one of Warzone’s most celebrated firearms throughout the battle royale’s history – and current players can now replicate its legendary performance using a surprising SMG alternative.
During Verdansk’s formative seasons, the Grau dominated Warzone’s weapon meta completely, and modern players have identified a specific barrel attachment that faithfully restores its famously clean iron sights.
Long before contemporary meta weapons like the Pulemyot, RPK, or DMR gained prominence, the Grau controlled engagements across Verdansk’s expansive landscapes.
Its unobstructed iron sight picture, combined with exceptional damage range and nearly non-existent recoil patterns, established it as Warzone’s premier battle rifle, though subsequent balancing adjustments eventually dethroned it.
Veteran Warzone enthusiasts maintain strong nostalgia for the weapon’s golden era, and they can partially recapture that experience through an SMG barrel that transforms the HRM-9 into a visual replica of the prime Grau.
HRM-9’s Grau Connection: The Princeps Long Barrel
While constructing an SMG to mimic an assault rifle seems counterintuitive, optimizing the HRM-9 for extended-range combat with this particular barrel attachment evokes powerful memories of classic Warzone engagements.
The Princeps Long Barrel, introduced during Season 1 Reloaded, provides the HRM-9 with iron sights that mirror the original Grau’s iconic visual design. To authentically replicate the Grau’s smooth handling characteristics, implement these specific attachments:
The visual similarity extends beyond aesthetics – the sight picture’s clean sightlines and minimal visual clutter directly replicate what made the Grau so effective for target acquisition and tracking.
Building Your Grau-Style HRM-9 Loadout
Naturally, you should experiment with various weapon attachments to determine optimal personal performance, but if you specifically want to recreate the original Grau iron sight experience, the Princeps Long Barrel remains the essential component.
Beyond the core three attachments, consider these additional components for enhanced performance:
The 50 Round Drum magazine proves crucial since this build sacrifices typical SMG mobility for ranged effectiveness, requiring ample ammunition for extended engagements.
Remember that this configuration significantly alters the HRM-9’s handling characteristics, transforming it from a close-quarters specialist into a mid-range tactical weapon that demands adjusted movement and positioning strategies.
Strategic Implementation and Common Pitfalls
This configuration represents a significant departure from conventional SMG builds, but creates an ideal sniper support weapon within Warzone’s current meta. If you require top-tier SMG performance for competitive play, the WSP Swarm remains the undeniable choice for maintaining advantage.
Common mistakes players make with this build include:
For optimal performance, pair this HRM-9 build with a long-range sniper rifle and focus on holding power positions where the weapon’s accuracy advantages shine while minimizing close-quarters exposure.
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No reproduction without permission：SeeYouSoon Game Club » Classic Grau returns to Warzone & MW3 with unique SMG loadout attachment How the HRM-9 SMG's Princeps Long Barrel recreates the legendary Grau iron sights in Modern Warfare 3