SAS Replacement Barrel Lock for SAS New Defender (New Style Round Lock)SAS Replacement Barrel Lock for SAS New Defender (New Style Round Lock) Replacement barrel lock will fit the SAS New Defender Range (new style), with the round lock holder. This Lock is a replacement barrel lock for the following clamps new style with a round barrel lock holder: SAS New Defender Wheel Clamp SAS New Defender Large Wheel Clamp