AIM Sports Inc Extended HK91/G3 M-Lok Hand guard Standard Black Black Medium. CNC machined aluminum construction makes for a solid sturdy component with made in specialized factories mounting hardware. Still sleek and lightweight the original lines of the rifle are retained while still offering all the benefits of modern accessories. Each rail system is supplied with two modular top sections one Picatinny and one M-Lok. Specifications for AIM Sports Inc Extended HK91/G3 M-Lok Handguard: Manufacturer: AIM Sports Inc Gun Make: Heckler & Koch Gun Model: Heckler & Koch HK91 Color: Black Finish: Anodized Handguard Material: Aluminum Condition: New Condition Quality: Excellent Condition Details: Other Included Accessories: Standard Mount Type: M-LOK Gun Type: Rifle Quantity: 1 Fabric/Material: Aluminum Features of AIM Sports Inc Extended HK91/G3 M-Lok Handguard Magpul M-Lok modular mounting system made in specialized factories steel mounting hardware Black anodized 6061 T6 aluminum 3.9 inch rail space forward of front sight Drop-in no gunsmithing required Picatinny and M-Lok forward top rail included 5 or 8 rows of M-Lok for ultimate modularity Package Contents: AIM Sports Inc Extended HK91/G3 M-Lok Handguard What firearm models does the manufacturer say AIM Sports Inc Extended HK91/G3 M-Lok Handguard is compatible with? The manufacturer suggests that AIM Sports Inc Extended HK91/G3 M-Lok Handguard is compatible with Heckler & Koch HK91AIM Sports Inc MMH94: Extended HK91/G3 M-Lok Hand guard Standard Black Black Medium