Midwest Industries G4M 13.375" M-LOK Handguard AR-15 Black

The Midwest Industries G4M 13.375" handguard transforms AR-15 platforms with enhanced modularity and reduced weight compared to traditional quad rail systems. This tactical handguard delivers professional-grade performance through precision manufacturing and battle-tested design principles.

What Makes This Different

The G4M series features a continuous top rail that maintains co-witness alignment with upper receivers while providing 360-degree M-LOK attachment points. Unlike heavier quad rail alternatives, this design reduces front-end weight by approximately 4 ounces while offering superior heat dissipation. The 6061-T6 aluminum construction provides military-specification strength ratings that exceed standard commercial handguards.

Key Features

• 13.375" length accommodates mid-length and rifle-length gas systems
• M-LOK slots at 3, 6, and 9 o'clock positions for accessory mounting
• Continuous Picatinny top rail maintains sight alignment
• 6061-T6 aluminum construction with Type III hardcoat anodizing
• Anti-rotation tabs prevent handguard movement under stress
• Compatible with standard AR-15 barrel nuts and gas blocks
• Internal diameter clearance for suppressor-compatible barrels

Field performance demonstrates consistent accuracy retention during extended firing sessions due to the free-floating barrel design. The M-LOK system accommodates bipods, lights, lasers, and vertical grips without requiring additional rail sections. Law enforcement and competitive shooters report improved balance and faster target transitions compared to quad rail configurations. The hardcoat anodized finish resists corrosion in marine environments and maintains appearance through thousands of rounds.

Technical Specs

• Length: 13.375 inches
• Weight: Approximately 12.8 ounces
• Material: 6061-T6 aluminum alloy
• Finish: Type III hardcoat anodized black
• Mounting: Standard AR-15 barrel nut interface
• Rail: Continuous Picatinny top rail
• Attachment: M-LOK compatible slots
• Internal diameter: 1.3 inches
• Made in USA

This handguard represents proven engineering for serious applications where reliability cannot be compromised. The combination of weight reduction and enhanced modularity addresses the primary limitations of traditional quad rail systems. Professional armorers and experienced shooters recognize Midwest Industries as a specification-grade manufacturer.