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MadBull Daniel Defense MK18 SOPMOD RIS Rail System

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MadBull Daniel Defense MK18 RIS II 9.5 inch SOPMOD II Rail Black

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CNC NSWC style Mk18 RIS, Free Float, fits all M4, full trademarks


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The MadBull Daniel Defense Mk18 RIS is a fully licensed replica of the 9.5 inch RIS II rail by Daniel Defense. MadBull and SOCOM Gear collaborated to make a fully CNC machined, free float rail system available for Mk18 airsoft guns. The aircraft aluminum DD Mk18 RIS II has a hard anodized finish, licensed trademarks, and fits AEG and GBB airsoft guns.

Daniel Defense is the Sole Source Provider of the RIS II to the United States Special Operations Command (SOCOM). This replica is officially licensed for airsoft and training use.

The Daniel Defense MK18 RIS II is designed for the MK18 or CQBR. 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. SOCOM had a specific requirement for a free float M203 solution and Daniel Defense responded, designing a revolutionary product to meet the government’s need.

The Daniel Defense RIS II allows the individual operator to free float the M203 grenade launcher without additional parts. As importantly, special tools are not required to mount the M203 grenade launcher. This was accomplished by integrating all of the needed parts to free float the M203 into the rail itself.

MadBull SOCOM Gear Mk18 RIS Features:

-Fully Licensed Daniel Defense Trademarks
-CNC Machined Aircraft Alumium
-Hard Anodized Finish
-Free Float Design
-Free Float M203 Mount Compatible
-Mk18 Mod1 (SOPMOD Block II) Replica 

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