Hi guys, I'm new to this board and just recently bought a Remington 870 express. I now want to build a tactical shotgun and was having a tough time deciding on what platform to start with. I went to the shop the other day and saw an 18" 870 express with synthetic stock and 2 shot extension. Now before this I had my heart set on buying the 870 police with the synthetic stock and ghost ring sights. Now is there a major difference between these two, besides the price? I'm looking to add a knoxx spec ops, so it doesnt really matter to me if the stock is synthetic or wood.