Aero Precision M5 .308 Enhanced 16.6 inch M-LOK Handguard Gen 2 Magpul Cerakote Flat Dark Earth. 308 build. The M-LOK system allows advanced modularity past the current 1913 picatinny rail system. Machined to mil-spec dimensions and engineered to perfection this handguard eliminates bulk while retaining strength and stability. Specifications for Aero Precision M5 .308 Enhanced 16.6 inch M-LOK Handguard: Manufacturer: Aero Precision Fabric/Material: 6061-T6 Aluminum Gun Model: M5 Gun Type: Rifle Handguard Length: 16.6 in Gun Rail: M-LOK Weight: 11.3 oz Condition: New Country of Origin: USA Caliber: .308 Winchester Features of Aero Precision M5 .308 Enhanced 16.6 inch M-LOK Handguard Free float design Built in anti-rotation tabs Scalloped rails Compatible with low profile gas blocks DPMS High Profile (.210) Tang Package Contents: Aero Precision M5 .308 Enhanced 16.6 inch M-LOK Handguard Aero Precision APRA308253C: M5 .308 Enhanced 16.6 inch M-LOK Handguard Gen 2 Magpul Cerakote Flat Dark Earth