Hello to everyone in this forum it was recommended to me to re-post theses questions here ( I had posted them in the A2 forum ) so here is the following posts that I had placed in the A2 forum :
[Does any body have a blueprint copy of the USAMU DCM/CMP legal freefloat tube ? or know where I could download it from. Also whose finished A2 upper do some of you guys like to start from with building a match gun ? any pref. I will be doing all of my own machining. Thank You, Doc.
Ok no response yet on the tube that is ok I just figured I would see if any of the members on here have machined there own before, I like the challenge. As far as the A2 upper is concerned I have found some useful content in the forums. Next question for all you NM, CMP, NRA shooters out there. After reading over the CMP rule book A4 uppers are now legal and they have also listed that you may use a quad rail fore end on the gun. It does not clearly state what type of quad rail just its diameter. So my tech question is can it be a free float or is a sopmod two piece type that use the delta ring, and is this legal only on the A4 upper or can I use this on a A2 upper. I really want to stick with the A2 upper for match for elevation purposes. Any and all help would be greatly appreciated I have not shot high power in years and things have changed some since my time. Thank You, Doc. ]
Any comments, recommendations will be greatly appreciated, Doc.