Not exactly answering your question, but be aware, RPR’s in .223 are pretty rare and well appreciated in the RPR community. Hang on to it.I know that all are speaking of the 6.5CM but I have an RPR 223 that I purchased for just over $800 new when it came out, I sure loved it, don't know how many rounds but many. Have not gotten it from the safe for over three years, built an Origin in 223 four years ago, and now thinking of upgrading the barrel on the RPR. What would be a good choice for the RPR 223? Open to any suggestions.