The M16 assault rifle has an overall length of 39.5 inches (1,000mm) and a barrel length of 20 inches (508mm).
20 inches or 508mm
508mm
508mm is bigger than 5cm.
0.7874015748 in Direct Conversion Formula 20 mm* 1 in 25.4 mm = 0.7874015748 in
It is 20 thousandths of a metre.
986mm (about 38.8 inches) for the M16A1, and 1006mm (about 39.6 inches) for the M16A2 and M16A4, and 1020mm (about 40.2 inches) for the Diemaco (now Colt Canada) C7 (Canadian M16 variant, based on the M16A1E4).
how many half inches is what.
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