Express police supply has all of their glock parts on sale for 1/2 off.
Everything else in the store is 16% this weekend. The lowest I have seen is
$75 + shipping.
You have to add to cart to see the savings
Glock Tactical Light $50
Link: http://www.ombexpress.com/p_FL130.aspx
All glock parts
Link: http://www.ombexpress.com/c_207.aspx
Good prices on barrels.