This FN M4A1 Carbine review tests practical accuracy with MA-Tech iron sights out to 500 yards using Magtech 62gr FMJ. Consistent hits were achieved up to 400 yards, but significant difficulty arose at 450 yards due to sight picture challenges. The M4A1's maneuverability is noted, but the M16's longer sight radius is deemed superior for long-range iron sight precision.
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