What are your guys/gals thoughts on this: SABRE DEFENCE 16" 4150 CMV MID LENGTH UPPER 1-9 TWIST or this: https://www.runnerrunnerguns.com/ProductDetails.asp?ProductCode=UPPER-COMPLETE-YHM-BCG
Looks nice and I like the YHM free-float, but I know nothing about Sabre. The specs seem to match what you would want, though. Besides the BCG & charging handle, you will need to get a rear sight. The MagPul MBUS is pretty decent, but I would suggest a metal sight if you will be using primarily irons. PSA has a sale on their metal sights, and MagPul has their MBUS Pro line that runs about $100 (of course, for $100 you could also get a Troy Battle Sight: Amazon.com: Troy Industries Folding Battle Sight Rear (Black): Sports & Outdoors)