I have a previously-used Rifle base for $80 plus shipping and a six-pack of your local Root Beer.  Great price and I get root beer from somewhere else...

From http://www.rifle.com
Rifle Windshield system  $199.00 standard price   
Rifle base ONLY 0.201.1116 $129.00   
Rifle windshield ONLY 15" clear 0.211.0001 $70.00   
Rifle windshield ONLY 17" clear 0.211.0002 $70.00   
Rifle windshield ONLY 19" clear 0.211.0003 $70.00   

PM sent.