Fab Defense M4 Picatinny Under Rail for AR-15/M4/M16 Handguards Black

The Fab Defense M4 Picatinny Under Rail is designed for everyday carry users who require reliable accessory mounting on their AR-15, M4, or M16 platforms. This rail adapter compensates for the handguard's angle, enabling tactical lights, lasers, and other Picatinny-compatible accessories to be mounted parallel to the barrel for improved alignment and functionality.

Constructed from a durable reinforced polymer composite, this rail meets MIL-STD 1913 standards, ensuring consistent performance under typical use conditions. It offers a quality upgrade to standard handguards by expanding mounting options without adding significant weight.

Features

• Compensates the handguard's angle to allow desired parallel barrel positioning
• Provides quality upgrade and mounting options
• Meets MIL-STD 1913 Picatinny rail specifications
• Manufactured with durable reinforced polymer composite

Specifications

• Compatible with all M16, M4, and AR-15 handguards
• Color: Black
• Brand: Fab Defense
• MPN: FX-UPRB
• UPC: 7290105940261