Valken Tactical feature their Vertical Grip System (VGS) in this video... "The Valken Tactical VGS (Vertical Grip System) has been spec’d and designed for use with 1913 Picatinny railed hand guards. The VGS is a minimalist, light weight, cost-effective grip that also has light/laser pressure pad/cable management.

Femme Fatale Airsoft got to review the Vetical Grip System from Valken Tactical... "Is there anything that I dislike about it? Honestly, not really. I like the look, textures and features it has. I did assume that because of its hollow centre and it being made of such a lightweight polymer it would be pretty weak/delicate but Valken have come through with this – it’s strong and doesn’t bend etc when put under stress.