Ben, of Boresight Solutions http://www.boresightsolutions.com can help you with the magwell and trigger job but im not sure if he can help you with the compensator.I'm looking for somebody to mod my SF. I have already contacted glock jockey, he said he can't work with the SF's. I'm looking for compensator, magwell and trigger job. Basically a base line IPSC job. Any Ideas??