The MAXIM DEFENSE MDX 510 C SBR 7.62x39 10.3" is a compact, high-performance short-barreled rifle chambered in 7.62x39. Built by Maxim Defense Industries, this premium SBR (model MXM-48123) features a 10.3-inch barrel finished in Urban Grey Cerakote, the innovative MDX two-piece handguard, and Maxim’s signature Hate Brake flash hider. Designed for superior reliability and maneuverability, this rifle delivers exceptional performance with widely available and affordable 7.62x39 ammunition, making it an outstanding choice for close-quarters applications, home defense, and tactical use.
Why Choose the Maxim Defense MDX 510 C SBR in 7.62x39?
The Maxim Defense MDX 510 C in 7.62x39 combines the proven ballistics of the 7.62x39 cartridge with a compact 10.3-inch barrel, resulting in a highly maneuverable SBR that excels in confined spaces. The 7.62x39 caliber offers excellent terminal performance and is compatible with a wide range of affordable ammunition, including steel-cased options. The MDX two-piece handguard provides exceptional rigidity while allowing easy access for maintenance, and the Hate Brake flash hider significantly reduces muzzle flash. Finished in attractive Urban Grey Cerakote, this SBR offers both premium aesthetics and rugged durability. Whether you’re a professional operator, competitive shooter, or serious enthusiast, the MXM-48123 delivers factory-built quality and performance.
Key Features of the Maxim Defense MDX 510 C SBR 7.62x39
- 10.3-Inch Barrel – Compact barrel length optimized for 7.62x39 with excellent handling characteristics
- 7.62x39 Chambering – Powerful and affordable caliber with strong terminal ballistics and wide ammunition availability
- MDX Two-Piece Handguard – Rigid, lightweight, and modular handguard system for easy accessory mounting and maintenance
- Hate Brake Flash Hider – Maxim Defense’s proprietary flash hider dramatically reduces visible muzzle signature
- Urban Grey Cerakote Finish – Durable, corrosion-resistant Urban Grey finish for enhanced protection and modern aesthetics
- 30-Round Magazine Capacity – Ships with a 30-round magazine for maximum firepower
- Short-Barreled Rifle Configuration – Extremely compact overall length for superior maneuverability in tight spaces
- Model MXM-48123 – Official Maxim Defense part number with UPC 680017481230
Performance and Build Quality
The MAXIM DEFENSE MDX 510 C SBR 7.62x39 is engineered for real-world reliability using premium materials and manufacturing processes. The 10.3-inch barrel is precision machined and paired with a gas system specifically tuned for consistent function with 7.62x39 ammunition. The MDX two-piece handguard delivers a rock-solid platform for optics, lights, and accessories while maintaining a slim, comfortable profile. The included Hate Brake flash hider significantly reduces muzzle flash, making this rifle highly effective in low-light conditions. The Urban Grey Cerakote finish provides outstanding resistance to abrasion, chemicals, and corrosion. Every component is carefully selected and assembled to ensure dependable performance whether running suppressed or unsuppressed. This SBR is particularly well-suited for users who want the power of 7.62x39 in a compact, easy-to-handle package.
Technical Specifications
| Product Name | Maxim Defense MDX 510 C SBR |
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| Model Number | MXM-48123 |
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| UPC | 680017481230 |
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| Caliber | 7.62x39 |
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| Barrel Length | 10.3 Inches |
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| Overall Length | Approximately 26.5 Inches (varies with stock) |
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| Capacity | 30 Rounds |
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| Handguard | MDX Two-Piece Handguard |
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| Muzzle Device | Hate Brake Flash Hider |
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| Finish | Urban Grey Cerakote |
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| Best For | Close Quarters, Home Defense, Vehicle Operations, Suppressed Use |
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Experience powerful 7.62x39 performance in a compact SBR package.
The Maxim Defense MDX 510 C SBR combines innovative design with proven reliability.
Important Notice: This product is a short-barreled rifle (SBR) and is regulated under the National Firearms Act (NFA). It is subject to all applicable federal, state, and local laws. Possession of this firearm requires proper ATF registration and tax stamp. It is the buyer’s responsibility to know and comply with all applicable laws regarding the purchase, possession, and transfer of NFA firearms. Must be 18 years or older (or 21 in some jurisdictions) to purchase. Keep out of reach of children. This product is intended for lawful use only.
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