Griffen & Howe 340 W Putnam Ave, Greenwich, CT06830 Griffen & Howe prides itself on being the finest firearm dealer in Conneticut. Offering private lessons seven…More days a week, Griffen & Howe can help customers get started or perfect their aim. It has a full line of firearms and accessories to make sure that shooters look their best and remain at the top of their game. And don't forget Fido. Griffen & Howe know that dogs are more than best friends.