NM Products or Sheffield Air Rifles.

I will second that.

Nice little shop South of Sheffield. If you visit them, they are not a "typical" RFD (that I have visited like Drapers Nottingham or Crawleys Surplus). They look more like a "stack them high, sell them cheap" kind of joint. They will let you handle their stuff if you ask nicely. Some of their stuff are the cheapest in the country, including pellets (R10 for £7 each if you buy 10 or more) and select few pistols (Luger P08 for £99 new). Some of their stuff are a lot dearer than others though, so check before you buy.

They lady in the shop is the boss lady. Respect!

So far all the stuff I bought online from them have been next day delivery, albeit a flat rate £7.44 (inc vat) charge for between1 and 20kg. Buy in bulk, and you'll save loads. Buy in singles, look elsewhere first, as the P&P will likely cancel out your savings.

Just bought 150 CO2 capsules, 10 tins of Econ II and a CO2 adaptor (for the incoming MPX). Ordered late on Tue night. Arrived this morning. Another virtually next day delivery from DHL / NMP. (I was on my last 6 CO2...!)