SDX/MDX 2-PIECE FLAT RAIL HANDGUARD
MODULAR HANDGUARD FOR EXCEPTIONAL SUPPRESSOR COMPATIBILITY
The Maxim Defense SDX/MDX Two-Piece Handguard is a premium upgrade for tactical AR builds, PDWs, SBRs and rifles. Purpose-built to seamlessly integrate with the DSX suppressor system and other 1.75” suppressors, this modular handguard delivers exceptional suppressor compatibility, fast configuration changes, and a low-profile, recessed fit. Currently available in a flat rail style, and in a full range of lengths—including 5.5", 8.5", 10.3", 11.5", 12.8", 14.5", and 16.25"—the handguard offers ultimate customization for your platform. Whether you're running a compact PDW or a full-length suppressed AR-15, this system brings rugged dependability, return-to-zero accuracy, and precision alignment for all your mounted accessories.
KEY FEATURES:
- Compatible with 1.75" Suppressors
Built to fit the DSX suppressor and most suppressors up to 1.75” in diameter. - Two-Piece Modular Design
Simplifies installation and allows for fast field-configurable loadouts without removing your gas system. - Recessed Suppressor Integration
Enables your suppressor to sit inside the handguard for a sleek, streamlined profile and improved balance. - Three-Point Lock-Up System
Delivers rock-solid mounting and ensures accessory alignment stays consistent under heavy use. - Return-to-Zero Rail System
Maintains optic and laser zero through removal and reinstallation—ideal for mission-critical setups. - Streamlined, Low-Snag Profile
Reduces catch points and enhances control in confined or fast-paced scenarios.
| FULLY ASSEMBLED FLAT RAIL HANDGUARD | ||
| Barrel Length | Assem. Length | Assem. Weight |
| 5.5" | 6.1" | .92 lb |
| 8.5" | 7.8" | 1 lb |
| 10.3" | 9.4" | 1.1 lb |
| 11.5" | 10.8" | 1.2 lb |
| 12.8" | 12.1" | 1.3 lb |
| 14.5" | 13.9" | 1.4 lb |
| 16.25" | 15.6" | 1.5 lb |
| DIAMETER | |
| Outer | 2.2" |
| Inner | 2.0" |
This handguard isn’t just another accessory—it’s an optimal upgrade for shooters demanding maximum performance from their suppressed AR platform. The three-point lock-up guarantees stability and repeatability under recoil, while the recessed suppressor integration reduces forward weight and creates a compact profile for maneuverability in tight spaces. With seven length options and the ability to choose between rail styles, it gives shooters the flexibility to fine-tune their build for any role or environment. Whether you're in law enforcement, military, or a civilian gun enthusiast building a top-tier suppressed rifle, the SDX/MDX Two-Piece Handguard provides unmatched modularity, accuracy, and suppressor synergy. Backed by Maxim Defense's legacy of innovation and performance, this handguard is ready to meet the demands of every mission.
At Maxim Defense, we take pride in designing and manufacturing high-performance firearms, suppressors and accessories that deliver exceptional reliability and durability. Your feedback and positive reviews are important to us, as they help us continually improve our products. If you experience any issues with your Maxim Defense products, please contact us at info@maximdefense.com, and we’ll work with you to resolve the matter as quickly as possible. Please note that we do not cover damage caused by the installation of other manufacturers’ products.
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