My USAF GUU-5/P carbine build.

[imarangemaster]

Parts list:
1) 601 NDS lower with modified Colt M16 LPK, except retro semi selector with dimples and Kalifornistan bullet button.
2) Aluminum second Gen. type CAR15 stock USGI M4 spring and standard buffer.
3) Gorgeous minty early Colt 604 upper
4) 16' DSA 1/7" twist chrome lined M4 Barrel with Wilson Tactical Comp (Kalifornication compliance when stock pinned and grip wrap used)
5) M16A1 BCG from AR15 Brick (though I have an original Chrome 601/602 slick-side BCG coming)
6) Flat Colt slip ring, weld spring and snap ring
7) Colt-ish 6 hole CAR-15 handguards from gunbroker
8) Colt 30 round mag blocked to 10 to keep it from being "Evil"
9) 70s vintage top sling adapter from B44T
10) Colt m16A1 pistol grip with cloisonné USAF medallion in grip (left over from a 1989 commemerative project I was making.