jbur88 published very interesting Remington 870 Tactical HD (Home Defense) Build on Remington 870 Forum.

List of upgrades:

Magpul SGA stock
Magpul Mlok forend
Mapul ms3 sling and sling mounts
Mesa Tactical 6 round side saddle
Vang comp big dome safety
Volquartsen extractor
Stiffer carrier spring
Elzetta mount
Streamlight polytac hp light

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build

Remington 870 Tactical Home Defense (HD) build