Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
You'll be taken to GrabAGun to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: GAG_LS-01-004-08020-006
MK18 RIS II Features The Daniel Defense Rail Interface System (RIS II) was designed at the request of the United States Special Operations Command (SOCOM) for the SOPMOD II program. It allows the individual operator to free-float the M203 grenade launcher without additional parts. MK18 RIS II Specifications Brand: Daniel Defense Model: MK18 Series: RIS II Material: 6061-T6 Aluminum Firearm Model: AR Platforms Free Floating: Yes Rails: Picatinny