Pat Toomey has picked up another big endorsement, this time from the National Rifle Association. In a statement, the NRA cited Toomey’s time as a congressman from 1999 to 2005 representing Pennsylvania’s 15th district, applauding his support of gun rights while in the House.

This endorsement is not particularly surprising, given that Toomey’s opponent, Joe Sestak, counts among his supporters New York Mayor Michael Bloomberg, notorious among gun enthusiasts for strident gun control advocacy.

Toomey has picked up a series of high-profile, major endorsements over the past few weeks, including support from the Pennsylvania Fraternal Order of Police, former Harrisburg Mayor — and Democrat — Stephen Reed, the American Medical Association PAC, the Pennsylvania Medical Society PAC, and former Gov. Tom Ridge.

Add to this roster the financial support he’s enjoying from groups like American Crossroads and, of course, the Club for Growth, and one begins to get a sense of both a strong, internal-to-Pennsylvania core support network, coupled with lots of national dollars flowing to win over undecideds and independents.

This news follows on the heels of the NRA’s endorsement of Republican Tom Corbett for governor on Friday, who holds a massive 10-15 point lead over Dan Onorato.