Lewiston is right around the corner from Tonawanda and there is a USPSA/IPSC club that shoots at the Tonawanda Sportsmans Club 5657 Killian Rd. North Tonawanda, NY 14120. If you are not familiar with IPSC shooting you can look it up online under USPSA. Look for club information on Western New York Practical Pistol League. You should find contact information there specific to the club and its shooting schedule. Your Glock would work just fine for this type of shooting - you'd want to have 4-5 magazines and belt pouches, belt holster that covers the trigger, the usual safety gear. Check it out - and enjoy yourself.