In the next few days I should be taking possession of a SP-1 .It should arrive at my dealer in a few days. Here is some things I'm a little curious about. Although I don't yet have the Ser #'s,it is finished in gray, has a birdcage flash hider,and bayo lug.The upper does
not have forward assist. What time frame might this be from,and what kind of quality should I expect? What if any problems should I be aware of? I saw a Colt AR last week finished in black and had a 1=9 barrel,and triangle handguards.Is it possible? Last but not least,were any A-2 uppers w/HB,bayo lug,and flash hider in the same gray finish made,that would fit this lower?
Some time in the future I would like to put either a 1=8,or a 1=9 HB on it,and put the original upper away. I would appreciate any help you could offer in this matter.Thanks