Steambow Archery AR-Series Vertical Foregrip With Inner CompartmentOur new foregrip has been significantly revised and optimally designed for use as a cocking grip for a repeating crossbow. We have achieved this by significantly reinforcing the attachment of the grip to the crossbow and optimizing the cross section. There is also a compartment on the inside for stowing a spare string or a stringing aid. Improved ergonomics in comparison to our previous gen foregrip Inner compartment that can hold a string, rail lube