Geissele Automatics167528648
Geissele Automatics 10.5'' Hk416 Super Modular Rail Smr M-Lok Ddc$525.00
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Availability: In Stock
The Geissele Automatics Mk4 10.5'' M-Lok Super Modular Rail in DDC is a lightweight handguard built for shooters who refuse to compromise on modularity or performance. This M-Lok rail system delivers the rugged, rigid platform Geissele is known for while keeping weight to a minimum—critical on a short-barreled setup where every ounce matters. Whether you're running a defensive carbine, a precision 300 BLK build, or a compact hunting rifle, the Mk4's integrated design and extensive accessory mounting options let you dial in exactly the configuration you need without excess material dragging your gun down.
The Mk4 combines integrated M1913 picatinny rail sections at the 3, 6, and 9 o'clock positions with M-Lok slots across those same positions plus both upper 45-degree quadrants. This hybrid approach gives you quick access to standard picatinny-mount optics and lights up front while preserving M-Lok modularity for the rest of your build. The aggressive ventilation throughout the rail body does double duty: it sheds heat during sustained fire and slashes weight compared to solid aluminum designs, making it an ideal choice for shooters building lightweight combat or hunting rifles where every tenth of a pound adds up.
Built from durable aluminum and finished in Geissele's Desert Dark Earth (DDC) color, the Mk4 10.5'' fits mid-length gas systems and most 10.5'' barreled uppers. The rail clamps to your receiver via a proprietary barrel nut system (barrel nut wrench and gas block sold separately). This is a no-nonsense rail for builders and shooters who understand that good gear should work hard and weigh light.
| Product Name | Mk4 10.5'' M-Lok Super Modular Rail |
| Brand | Geissele Automatics |
| Rail Length | 10.5 inches |
| Mounting System | M-Lok |
| Integrated Rails | M1913 picatinny at 3, 6, 9 o'clock |
| Color | Desert Dark Earth (DDC) |
| Material | Aluminum |
The rail itself comes complete. The barrel nut wrench and gas block are sold separately and required for installation.
The Mk4 10.5'' is purpose-built for 10.5'' barreled uppers, typically used with mid-length gas systems.
Yes. The rail features integrated M1913 picatinny sections at the 3, 6, and 9 o'clock positions for standard picatinny mounts, while M-Lok slots across the 3, 6, 9 o'clock and upper 45-degree positions allow you to add M-Lok accessories throughout the system.
Yes. The aggressive ventilation design throughout the Mk4 dramatically reduces weight compared to solid rail designs, while maintaining a strong and rigid platform.
SKU: 167526641 • Weight: 1.2oz
Availability: In Stock
The Geissele Automatics Mk4 10.5'' M-Lok Super Modular Rail in DDC is a lightweight handguard built for shooters who refuse to compromise on modularity or performance. This M-Lok rail system delivers the rugged, rigid platform Geissele is known for while keeping weight to a minimum—critical on a short-barreled setup where every ounce matters. Whether you're running a defensive carbine, a precision 300 BLK build, or a compact hunting rifle, the Mk4's integrated design and extensive accessory mounting options let you dial in exactly the configuration you need without excess material dragging your gun down.
The Mk4 combines integrated M1913 picatinny rail sections at the 3, 6, and 9 o'clock positions with M-Lok slots across those same positions plus both upper 45-degree quadrants. This hybrid approach gives you quick access to standard picatinny-mount optics and lights up front while preserving M-Lok modularity for the rest of your build. The aggressive ventilation throughout the rail body does double duty: it sheds heat during sustained fire and slashes weight compared to solid aluminum designs, making it an ideal choice for shooters building lightweight combat or hunting rifles where every tenth of a pound adds up.
Built from durable aluminum and finished in Geissele's Desert Dark Earth (DDC) color, the Mk4 10.5'' fits mid-length gas systems and most 10.5'' barreled uppers. The rail clamps to your receiver via a proprietary barrel nut system (barrel nut wrench and gas block sold separately). This is a no-nonsense rail for builders and shooters who understand that good gear should work hard and weigh light.
| Product Name | Mk4 10.5'' M-Lok Super Modular Rail |
| Brand | Geissele Automatics |
| Rail Length | 10.5 inches |
| Mounting System | M-Lok |
| Integrated Rails | M1913 picatinny at 3, 6, 9 o'clock |
| Color | Desert Dark Earth (DDC) |
| Material | Aluminum |
The rail itself comes complete. The barrel nut wrench and gas block are sold separately and required for installation.
The Mk4 10.5'' is purpose-built for 10.5'' barreled uppers, typically used with mid-length gas systems.
Yes. The rail features integrated M1913 picatinny sections at the 3, 6, and 9 o'clock positions for standard picatinny mounts, while M-Lok slots across the 3, 6, 9 o'clock and upper 45-degree positions allow you to add M-Lok accessories throughout the system.
Yes. The aggressive ventilation design throughout the Mk4 dramatically reduces weight compared to solid rail designs, while maintaining a strong and rigid platform.
SKU: 167526641 • Weight: 1.2oz