Daniel Defense115856310
Daniel Defense M4A1 RIS II 12.25" Free-Floating Handguard, 6061-T6 Aluminum, Black Anodized, Picatinny Rail for AR-15$501.00
Availability: In Stock
The Daniel Defense MK18 RIS II 9.55" free-floating handguard brings proven tactical design to your AR-15 build. Born from U.S. Special Operations Command requirements, this handguard delivers the accuracy benefits of a free-floated barrel while maintaining the rail real estate serious shooters demand. Whether you're building a precision rifle, a duty gun, or a modular platform ready for whatever mission comes next, the MK18 RIS II gives you the foundation to attach optics, lights, lasers, and accessories exactly where you need them.
Built from aircraft-grade 6061-T6 aluminum with a mil-spec Type III hard-coat black anodized finish, this handguard is engineered to survive hard use. The 6-bolt attachment system locks securely to your upper receiver using Grade 8 military-spec fasteners—no wobble, no guessing. At 14.1 ounces, it's substantial without being a weight penalty, and the compact 9.55" profile keeps your overall gun balanced and maneuverable. The uninterrupted upper Picatinny rail runs the full length, giving you unlimited mounting flexibility for your favorite optic or backup sights.
What sets the MK18 RIS II apart is its two-piece design and the integrated geometry that made it the choice for SOCOM builds. The free-floating barrel design isolates your barrel from handguard vibration, which translates to tighter groups downrange. If your mission ever calls for it, the lower rail section is designed to work with additional specialized attachments when removed. This isn't a compromise handguard—it's a purpose-built piece of gear that's been proven in the field.
| Brand | Daniel Defense |
| Product | MK18 RIS II Free-Floating Handguard |
| Rail Length | 9.55" |
| Width | 2.23" |
| Height | 2.25" |
| Inside Diameter | 1.15" |
| Material | 6061-T6 Aluminum |
| Finish | Mil-Spec Type III Hard-Coat Anodized (Black) |
| Weight | 14.1 oz |
| Attachment System | 6-Bolt with Steel Barrel Nut |
| Fasteners | Grade 8 Military Specification |
| Rail Configuration | Continuous Upper Picatinny Rail (Mil-Spec 1913) |
| Free Float | Yes |
| Gas System | Carbine |
| Compatibility | AR-15 with MK12 Low Profile Gas Block |
The Daniel Defense MK18 RIS II is built for standard AR-15 rifles. For proper installation and performance, Daniel Defense recommends using this handguard in conjunction with a MK12 Low Profile Gas Block.
Yes. Free-floating design isolates the barrel from the handguard and rail system, eliminating the vibration transmission that can shift your point of impact. This consistency translates to tighter groups, especially important if you're shooting distance or running a precision rifle.
The MK18 RIS II was developed specifically for U.S. Special Operations Command and features a two-piece design that accommodates specialized configurations when the lower rail section is removed. The 6-bolt attachment system and uninterrupted upper rail platform make it exceptionally rigid, and the aircraft-grade aluminum with mil-spec hard-coat anodizing is built to survive demanding use.
The handguard weighs 14.1 ounces, keeping your AR-15 balanced and maneuverable while providing the durability and rail space you need for optics and accessories.
SKU: 115716251 • Width: 4.4in • Height: 4in • Depth: 11.7in • Weight: 1.56oz
Availability: In Stock
The Daniel Defense MK18 RIS II 9.55" free-floating handguard brings proven tactical design to your AR-15 build. Born from U.S. Special Operations Command requirements, this handguard delivers the accuracy benefits of a free-floated barrel while maintaining the rail real estate serious shooters demand. Whether you're building a precision rifle, a duty gun, or a modular platform ready for whatever mission comes next, the MK18 RIS II gives you the foundation to attach optics, lights, lasers, and accessories exactly where you need them.
Built from aircraft-grade 6061-T6 aluminum with a mil-spec Type III hard-coat black anodized finish, this handguard is engineered to survive hard use. The 6-bolt attachment system locks securely to your upper receiver using Grade 8 military-spec fasteners—no wobble, no guessing. At 14.1 ounces, it's substantial without being a weight penalty, and the compact 9.55" profile keeps your overall gun balanced and maneuverable. The uninterrupted upper Picatinny rail runs the full length, giving you unlimited mounting flexibility for your favorite optic or backup sights.
What sets the MK18 RIS II apart is its two-piece design and the integrated geometry that made it the choice for SOCOM builds. The free-floating barrel design isolates your barrel from handguard vibration, which translates to tighter groups downrange. If your mission ever calls for it, the lower rail section is designed to work with additional specialized attachments when removed. This isn't a compromise handguard—it's a purpose-built piece of gear that's been proven in the field.
| Brand | Daniel Defense |
| Product | MK18 RIS II Free-Floating Handguard |
| Rail Length | 9.55" |
| Width | 2.23" |
| Height | 2.25" |
| Inside Diameter | 1.15" |
| Material | 6061-T6 Aluminum |
| Finish | Mil-Spec Type III Hard-Coat Anodized (Black) |
| Weight | 14.1 oz |
| Attachment System | 6-Bolt with Steel Barrel Nut |
| Fasteners | Grade 8 Military Specification |
| Rail Configuration | Continuous Upper Picatinny Rail (Mil-Spec 1913) |
| Free Float | Yes |
| Gas System | Carbine |
| Compatibility | AR-15 with MK12 Low Profile Gas Block |
The Daniel Defense MK18 RIS II is built for standard AR-15 rifles. For proper installation and performance, Daniel Defense recommends using this handguard in conjunction with a MK12 Low Profile Gas Block.
Yes. Free-floating design isolates the barrel from the handguard and rail system, eliminating the vibration transmission that can shift your point of impact. This consistency translates to tighter groups, especially important if you're shooting distance or running a precision rifle.
The MK18 RIS II was developed specifically for U.S. Special Operations Command and features a two-piece design that accommodates specialized configurations when the lower rail section is removed. The 6-bolt attachment system and uninterrupted upper rail platform make it exceptionally rigid, and the aircraft-grade aluminum with mil-spec hard-coat anodizing is built to survive demanding use.
The handguard weighs 14.1 ounces, keeping your AR-15 balanced and maneuverable while providing the durability and rail space you need for optics and accessories.
SKU: 115716251 • Width: 4.4in • Height: 4in • Depth: 11.7in • Weight: 1.56oz