Started building a lightweight AR and finding specs isn't always easy plus are they true or not?? So I wanted to jot down my findings for others. Plus I'm a weight nut, comes from bikes and cars.
This build is just what I can afford and what I want. I know I can do lighter.
Lower....
Anderson lower, typical, nothing fancy- 8.68oz
CMMG lower parts- 2.00oz
PSA mil spec trigger and pins- 2.53oz
ATI buffer tube- 3.47oz
ATI castle nut- 0.52oz
ATI end plate- 0.49oz
ATI buffer- 2.95oz
ATI spring- 1.85oz
MFT stock- 6.02oz, 5.8oz advertised
MFT trigger guard with roll pin and front allen screw- 0.20oz
MFT EPG16 gutted grip- 2.24oz, 2.4oz advertised with insert, roll pin and trap door
Magpul 1/4-28, 1" grip bolt- 0.23oz
Total- 31.18oz
Actual weight on my scale- 31.24oz probably from oiling?
Some upper parts on the way, will weigh later
Upper....
Faxon 14.5" pencil barrel- 18.24oz, 18.4oz advertised
Faxon QPQ LWT BCG- 8.48oz, 8.5oz advertised
2A Armament BALIOS lite upper- 5.79oz, 5.85oz advertised
2A Armament 10" keymod rail with "upgraded" aluminium barrel nut- 6.41oz, 6.35oz advertised
VSeven titanium 0.625" gas block- 0.71oz, 0.68oz advertised, VSeven does not state 3 set screws weight
Strike poly dust cover- 0.40, 0.30oz advertised
LBE charging handle- 1.12oz
Mid length gas tube with roll pin- 0.76oz, 0.64oz online source gas tube only
Precision Armament M4-74 silver comp- 2.67oz
Crush washer- 0.11oz
Magpul flipup sights- 2.47oz
Total- 47.16
EDIT...............
Vortex Venom mini red dot- 1.61oz
Pinned upper added 0.04oz
Total upper- 46.34oz
Total AR-15- 77.58oz, 4.85lbs