07-09-2014, 07:14 PM
(This post was last modified: 07-09-2014, 07:17 PM by olde sarge.)
Well, to all that gave me encouragement and technical advise I pulled the trigger and ordered a PF Bartlein AR720 (the phalanx treated barrel extension made the difference for me), Phalanx PF bolt carrier assembley, PF lower parts kit minus trigger, rifle length gas tube, PF low profile gas block, build box and Vol I and II of Grendel load books. Still mulling the upper and lower and have to decide between PF and AERO Precision M4E1 Enhansed Keymod. Kind of tending twards the Aero upper but not finding much about builds and barrel fit to receiver info. Want tight. Will hold off on the stock until I get the other parts assembled so I can determine how much weight I need to balance the rifle to my liking. Would like any info on AERO upper/ barrel fit from those that might have used one. Heart felt thanks to all, John