Fortis Manufacturing Quick Detach Sling Mount M-LOK Blue Anodize. We're trying to blend form and function and think you'll agree that these look great. Specifications for Fortis Manufacturing QD M-LOK Sling Mount: Manufacturer: Fortis Manufacturing Fabric/Material: 6061 Aircraft Grade Aluminum Weight: 0.38 oz Finish: Anodized Features of Fortis Manufacturing QD M-LOK Sling Mount Type III hard coat anodized 8 position non-rotational locking interface Minimal footprint Fits M-LOK mounting systems Package Contents: Fortis Manufacturing QD M-LOK Sling Mount 1/4 Set Screws Fortis Manufacturing QD-ALUM-ML-BLU: Quick Detach Sling Mount M-LOK Blue Anodize