DYTAC UXR 3.1 RAS (13.5 Inch) for Tokyo Marui Profile (M31.8 / P1.5) DE

DYTAC UXR 3.1 RAS (13.5 Inch) for Tokyo Marui Profile (M31.8 / P1.5) 
6061 T6 Aluminum Construction 
Free float 20mm Rail system for mount foregrip, tactical scope, red dot, laser & flashlight...etc 
Additional space on both for mount Mil-spec Picatinny Rails on (Not Include) 
Suitable for Profile (M31.8 / P1.5) Series Airsoft Rifle 
Equipped with Heat Shield 
Perfect Compatible with Tokyo Marui Profile M4 Upper Recever 

Length (Rail): 345 mm 

NOTES: Modification & Self-Installation is required, recommended for experienced user, consult expertise if needed .