My "new" laser appeared to be used so I didn't need to remove any antistatic solder points.

A parts catalogue (https://fixpart.co.uk/product/panasonic-...) shows solder across a couple of points on the lower right hand side of the laser.

If these are present on your new laser you need to remove them with a soldering iron. You may get away with just touching the iron onto them but don't be surprised if you need to use some desoldering wick.