I bought a used mixed match set of pipes and silencers. I have Shearer SB IF pipes and Sniper stingers/silencers. Rather than modify the Sniper stingers to fit I would rather buy the Shearer Stingers but don't really want to drop $400 on a new set unless I can recoup some of my money from the Snipers. I'm not in a hurry as I'm just about to start my 4mil build and also have a complete set of CPI pipes to try out. If anyone knows where I can buy cheaper Shearer setup please let me know, the $400 was a quote from FAST.