Airsoft Artisan URX4 -type MLOK handguard (AEG / MWS / GBB / PTW)
 
URX4 is as sleek as a rail can be. MLOK + integrated QD sling brackets, what more do you need?  
 
Notes:
Made from 6 series aluminium.
CNC metal construction.
Anodized color finish.
Please note that you need a aftermarket barrel spacer to work with the MWS platform (AngryGun, G&P, etc. or you can even make one yourself as a neat DIY project).