I'm in the market for a black rifle soon and am trying to decide what to get so I'm turning to the NW firearms crew for thoughts. I'm leaning toward an AR because my range will only let me shoot up to 5.56 or 7.62x39. So .308 is out. If any of you have other suggestions of a fun black rifle, I'm all ears. I can't quite decide if I want to buy a new rifle or used. I'm leaning toward a new Colt 6920 or LMT Defender. I've seen some used rifles for sale that have some mods done to them. I hesitate to buy a used rifle with mods because I don't know the quality of smithing that went into installing the mods. Is my concern unfounded? Or are AR mods (handguards, barrels, triggers) something that is easy to do and really hard to screw up? The only mod I'm interested in is a SOPMOD stock and a rod dot or low power scope. I'm also considering the Colt 6720 with the lightweight barrel. Is barrel durability any concern for an average plinker? My rifle use is pretty much as a range toy so I'm not going to go crazy with lots of rounds shot very quickly. At the very most, I might try a black rifle league shoot or two.