From top to bottom
14.5" M4 (not A1) 727gms
16" Govt 874gms (including brake - est brake at 70 gms)
16" H-Bar 1118 gms
20" H-Bar 1529gms
Balance points of barrels alone
14.5" 150mm from torque shoulder
16" Govt 140mm
16" HBar 170mm
20" 190mm
As a moment
14.5" 0.109
16" Govt 0.148
16" HBar 0.156
20" 0.29
Thats enough, as any more will just confuse![]()
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