Weight comparison for three uppers
1 - BCM 16" ELW BFH upper with 13" KMR - 1708 grams
2 - Colt 16" govt profile with MOE hand guards and FSB - 2021 grams
3 - BCM 11.5 BFH with MOE hand guards and FSB - 1743 grams
All uppers with BCG and CH and magpul BUIS rear sight (#1 with magpul BUIS front sight)
So, the difference between these lightweight barrels and kmr make a 16 carbine lighter than a 11.5 with moe hand guards. The kmr rail with LE barrel makes the carbine about 3/4 pound lighter than the comparable stock Colt 6920 with MOE hand guards. This winning combination also makes the carbine 1.2 pounds lighter than my last Colt 6920 with a 13" troy alpha rail. It's an impressive difference.


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