Davidson Defense Umbra 7.5-inch 1:16 10MM AR-15 Freefloat M-Lok Handguard Pistol Upper Build Kit

Davidson Defense Umbra 7.5-Inch 10mm Upper Build Kit | 1:16 Twist | M-Lok Handguard | Phosphate Barrel

The Davidson Defense Umbra 7.5-Inch 10mm Upper Build Kit combines durable construction with customizable features for optimal performance in compact pistol-caliber platforms. Chambered in 10mm Auto, this kit features a 7.5-inch barrel with 1:16 twist rate crafted from 4150 CrMoV steel with phosphate finish for corrosion resistance. The 7.5-inch M-Lok handguard made of lightweight 6061-T6 aluminum in sleek black finish provides modular accessory mounting. The billet upper receiver constructed from 6061-T6 aluminum with hard coat anodizing ensures durability and longevity, allowing gunsmiths to create compact AR-15 pistols designed for accuracy and improved handling.

Key Features

• Davidson Defense Umbra upper build kit for 10mm Auto platforms
• 7.5-inch barrel in 4150 CrMoV steel with phosphate finish
• 1:16 twist rate optimized for 10mm Auto projectiles
• Billet upper receiver in 6061-T6 aluminum with hard coat anodizing
• 7.5-inch M-Lok handguard in 6061-T6 aluminum with black finish
• Compact design for pistol configurations

Perfect For

• Shooters seeking powerful 10mm Auto pistol platforms
• Hunting applications requiring stopping power in compact packages
• Backcountry defense against large predators
• Compact builds prioritizing terminal ballistics

10mm Auto Power

The 10mm Auto chambering delivers substantial energy and flat trajectory compared to traditional pistol calibers. This powerful cartridge provides excellent stopping power and effective range for hunting, backcountry defense, and applications where terminal ballistics are critical in a compact platform.

Phosphate-Finished 4150 CrMoV Barrel

The 7.5-inch barrel constructed from 4150 CrMoV steel with phosphate finish provides corrosion resistance and durability. The 1:16 twist rate is optimized for stabilizing 10mm Auto projectiles, ensuring accuracy despite the compact barrel length.

Hard Coat Anodized Billet Receiver

The billet upper receiver machined from 6061-T6 aluminum with hard coat anodizing delivers enhanced surface hardness and wear resistance. This precision-machined construction ensures tight tolerances and reliable performance with the powerful 10mm Auto cartridge.

Compact M-Lok Configuration

The 7.5-inch M-Lok handguard nearly extends to the muzzle, maximizing usable mounting space for lights, grips, and other accessories. The lightweight 6061-T6 aluminum construction maintains maneuverability while the compact dimensions make this kit ideal for close-quarters applications requiring significant stopping power.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility of all components before assembly. Designed for pistol-caliber builds—confirm 10mm Auto compatibility with your lower receiver and magazine system. Compact barrel length may affect ballistics and noise levels.