Trinity Remington 870 Single Rail Mount and 4x32 Hunting Scope Combo Aluminum Black. FAST 2-3 DAYS SHIPPING ANYWHERE IN USA Aluminum body construction for increased durability. Coated glass for best possible sight picture and lens durability. Saddle scope mount for Remington 12GA 870 1187. Machined aluminum alloy body in anodized non glare matte finish