Someone local is offering a Colt National Match with a bunch of magazines and a 250 round count for $1000. I don't know if National Match means the MT6700 with 1:9 twist or the MT6601 H-Bar with 1:7 twist. How popular are Colt's on the firing line? Do the odd size trigger/hammer pins cause any issues?

I'm considering it because I can do a face to face sale without 4473's, shipping, FFL transfers, tax, etc.