The 29-year-old opened the Championship season with Pirates in a 30-14 victory over Doncaster Knights but played for Tigers’ Development XV in the opening Premiership Rugby A League fixture on Monday and is now able to join up with Tigers’ senior squad.
Tigers director of rugby Richard Cockerill said: “We have had a number of injury issues in the second row and identified Ben as a possible option in the short term. He has had a lot of experience in the Championship and we’re looking forward to seeing him in this environment over the next few months.
“He did well in the A League on Monday and we’ll see how he goes.”
Cornish Pirates chief executive Rod Coward said: “Leicester made their request to take Ben and much discussion has taken place to decide whether this was the right thing to do at this time. There is no doubt that Ben will benefit from the experience, which is a huge opportunity for him. Also, at the same time there are both short and long-term benefits for the club in such an arrangement, and we are pleased with the loan.”
A former captain of Saracens Under-21s, Gulliver played for hometown Coventry before moving to Plymouth Albion in 2006 and then joining the Pirates ahead of the 2008/09 season. He has captained the Pirates on a number of occasions and was a member of the squad which beat Munster in the final of the British & Irish Cup last season.