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M4 14.5" vs 16" barrel  comparison
Top: Colt 6920 w/an original M4 14.5" barrel which has been fitted w/a Sabre Defence extended A2 FH permanently mounted to bring it to legal length.
Botom: Original 6920 16" barrel w/standard A2 FH.
Photo 32 of 34, M4 14inch-16inch comparison.jpg, 107KB, 1565x790, 1986 Hits
Other Sizes: Original
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