Yes, the M14E2 with pistol grip and long sling for waist-level carry was a "bastard", for sure. Not an FN MAG, not a BAR.

I looked up the official US Army records.
The orginal XM-21 order to Rock Island Arsenal in 1969 was for 1,435 match grade M-14s.
Weight was 11.3 to 11.6 lbs.

An M-14 or M1-A with a heavy barrel and oversized stock weighs 11.25 lbs.

A standard match grade M-14 or M1-A with walnut stock weighs 9.8 lbs.

An M-14 or M1-A with standard USGI walnut stock and barrel weighs 9.3 lbs. All of mine, Winchester and Harrington-Richardson, weighed 9.25 empty, with the magazine.

Standard ammunition is a lot less powerful than the 172-gr M60 ammunition at 65,000 CUP.

wt bullet powder chg CUP FPS
173 (M118) 42.0 4895 50,000 2580
168 (M852) 42.2 4895 51,000 2580