Many Rapids have been messed about with over the years, sometimes by people who don't really know what they're doing. The good thing is though, theyre solidly engineered, easy to work on and should serve you for many,many years. The longer barrelled FAC ones are a bit of a hefty handler, but them make a really good vermin tool with a good shot count. If you get a Dr Bob quick fill and gauge, they're an even better tool. Not that much to go wrong really. Easy to mend if they do go wrong.