The American Defense Vortex Tripod Adapter Kit with ARCA Mount is designed to adapt the 170-S Picatinny QD Mount or ARCA Mount directly to the head of Vortex Rifle Tripods. Precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize, this adapter kit ensures durability and a rock-hard finish. The ARCA version features a special short throw lever design, allowing it to be loosened enough to slide to any position on the ARCA Rail while still retaining the mount to the rail. Ideal for precision shooting and versatile mounting options, this adapter kit enhances your tripod's functionality. American Defense Manufacturing ADM AD-VTA Vortex Tripod Adapter Kit w/ADM QD ARCA Mount AD-VTA-BLK-ARCA in Black