I hate to turn anyone away from "
building", but

...
http://www.jprifles.com/1.2.2_JP15.php$1,999

Off the top of my head, I can't say whether that rifle uses the "
full mass" or "
low mass" carrier?! ... that'd be somethin' ya'd wanna figure out, before ya start, either way! I have zero experience with such things ... so if anything, I'd tend to go with "
full mass" ... but I could very well be missing the boat on some sorta advantage, there?!
I know of at least two guys 'round here who bought JP rifles in the last 12mo ... if they show up, I'd PM 'em and see what ... if anything ... they'd've done differently!
Myself, I bought two of the JP-15 lowers with his trigger installed ... they're mil-spec lowers with JP triggers ... really nothin' more to say 'bout 'em!
