I will try to get the gun deal in the gun forum this time!
http://slickdeals.net/forums/showthread.php?sduid=0&t=3384602
Kit contains the following: recoil spring assembly, minus collector (connector?), two followers, two magazine floorplates, two magazine springs, trigger pin, trigger housing pin, locking block pin, trigger spring, extended slide stop* and extended magazine catch*. (*Not in G21 kit). All work on Glock pistols should be performed by a certified Glock Armorer.
Fits: (602)G17 kit, (603)G19 kit, (604)G26 kit, (605)G22 kit, (606)G23 kit, (607)G27 kit, (608)G21 kit.
Shipping was $5.95 and they charged me $1.55 for tax. Total was $27.38 shipped.
I picked one of these up last night. I put an OEM "-" connector in all of my Glocks and that usually runs about $20. The way I look at it, I'm buying the connector and getting the rest of the stuff for $7.