god how many times .... bolded the important parts.
They are a gimmick rifle of pretty sad build quality apart from the receiver and bolt. The factory barrel was like 5 miles of dirt road, took forever to copper in after cleaning. Factory barrel didn't last long either and was finicky about ammo. With the right stuff it'd group nuts tight. With anything else it'd play shotgun games. It also spit out extractors like it was on sale. After the 4th one they suddenly stopped breaking. I think all the steel case ammo was not good for it since it was on the 4th extractor that I stopped using steel case/steel jacketed garbage ammo in it and went to running purely brass cased handloads.
I got mine (originally a 24" MVP Varmint .223) just to kill huge numbers of Belding's ground squirrels because of the AR-15 mags. It did ok at that as long as range wasn't too long. The factory stock on the varmint model is good laminated wood but the bedding block was a shit pile of plastic that really wounded the consistency and lead to a lot of flyers. After I burned out the factory barrel (hard to do on a .223 without effort but I used a ton of copper washed steel jacketed bullets and those just ATE the rifling out of it) I replaced the 9-twist with a 7-twist that's 26 inch instead of the factory 24 inch. I also replaced the recoil lug with a flat ground unit and the factory round barrel nut with a 12-point barrel nut. Then I replaced the stock with a MDT LSS and XLR butt stock and a PSG-1 type grip. I don't like blade triggers so I replaced that too.
Now it's a totally shootable rifle which I quite like other than the mag length limitation makes it effectively impossible to get the most out of a .223 since you can't load long and feed from the mag.