Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent

The 4 pack Tacstar saddle fit great on my Mossberg 500. Installation was EASY! It doesn't even require taking apart the firing assembly like most do! I feel it's very secure as well. Out of all the things I've bought for my Mossberg 500, this was easily the easiest to install, and it does exactly what its supposed to.