So in the month I've owned a mini 14 I've run a thousand rounds down the pipe. Tried the stock peep sites so so, mounted the stock rail with a red dot, too low getting hit by ejected brass. Bought a aftermarket rail that used the stock mounting slots, sits higher clear of getting hit by brass. Tried the red dot, one eye two eyes didn't like it. Bought a vortex crossfire 3-9x40 scope and used the stock rings. Slighted in with a laser @ 25 yards she's nuts on @ 100yards. Every time after I ran ammo down range, I cleaned the bore and receiver good. I wanted to field strip the gun and clean the gas pipe and front of the slide, I was going to remove the scope, but I put a lot of time and ammo into getting on target so I went ahead and took her down with it on. It wasn't hard at all. I removed the ejector bolt stop that was key. It can be done. When I got the rifle apart I was surprised how much crap was on the gas pipe. At first I thought what I was looking at was a weld, big build up of carbon right where the pipe goes in to the gas block, had to scrape away at it. The rest of the gun was not that bad. How often do you guys clean the gas pipe and piston end of the slide? Is it common for there to be that much hard carbon after the first thousand rounds of break in?