TruGlo Riser Mnt Picatinny 1inch 1-pcs TG-TG8990B. For more great deals on Red Dot Sight Mounts by TruGlo please browse our TruGlo Red Dot Sights & Accessories page. TruGlo TG-TG8990B: Riser Mnt Picatinny 1inch 1-pcs