This V Sock slides over the front V block just like a sock does. This V sock allows a little more padding and protection. Very handy option for Semi auto handguns. This sock allows protection and a little padding not only on the bottom of the V but in front of the V block. Thus, allowing the shooter to push the gun forward to allow the trigger guard to bump against the V block. This extra padding can be used as a forward battery position or forward stop. Thus allowing 3 points of contact when gun testing or stability is paramount. Revolvers have cylinder blast so Not used as much with revolvers as we use it and recommend it for semi-Auto pistols and use with all rifles.Note: this is the V sock sleeve only. Ransom Multi Cal Rest and pad sold separately.