Send Parcel Force 48. There is only a maximum £100 comp if lost, but it's the only way they will do it. If a co2 pistol, DO NOT pack with any capsules as it could end up being destroyed, and most probably delayed in the system. They do not allow any pressured containers sent by the public. They will allow for a business account though. The last one I had delivered was a Webley Tempest sent from Gretna with no problems at all.