This is a Accu-Tac Part known as the Spike Claws, model LRSC-0001.
The Claw was designed as an optional accessory for the Spiked feet. Simply screw the claw on the outer thread of the spike. It will convert the spike to a clawed foot which is perfect for sand" mud" or any soft surface that your bipod can sink into.
Features:
Screw-on attachment
Converts spike to claw
