In 2007, we were alerted by a customer to a Quadlite action with an endemic misfiring problem.
RPA replaced the bolt tube but later in 2008 we became aware the problem was more widespread.
RPA subsequently replaced a second bolt tube but in an email dated 11 July 2009.
You can view the borescope pictures of the same bolt.
In August 2009, we approached Mr Keith Hills, NRAA Gunsmith for his advise and assistance.
Keith developed a procedure for repairing the bolts and the below pictures show the progress of bolt repair No.3.