Has anyone had one of these retro fitted. Does anyone know what is entailed. I understand that Callahan's do one through Midway. Any help would be appreciated as my Remington has problems sometimes extracting even with new rounds as the extractor claw hardly engages. It is a warranty replacement bolt from Riflecraft but I do not want to send it back as it would not extract at all when I got the gun back from them as the extractor pin (not claw) did not protrude enough. I had to get a gunsmith to elongate the cutting on the plunger to allow it to protrude more & this undermined my confidence in Riflecraft.