NDP MP Niki Ashton has now officially gone over to the dark side. According to the Coalition For Gun Control, there were three NDP and one Liberal in support of Conservative MP Candace Hoeppner’s Private Member’s Bill C-391 as of late September. So now we have four. If Anthony Rota isn't the Liberal the CGC was thinking of, then the Tories are within four votes of the Bill's passing 2nd reading on November 4th.
You want to seal a Harper majority, then let Bill C-391 pass. Tories will get a two % bump as supporters angry with them over whatever return to the fold; Libs will lose similarly as people wonder what use the party is anymore. I don't know what will happen to the NDP; they may be able to justify the move with reference to Hegel's dialectic.