This review tests the Lage Max31A Mk2 conversion for the MAC-11 A1 in a Pistol Caliber Carbine course. The open-bolt 9mm submachine gun, fed by Suomi drums, proved inefficient for precision shooting due to uncontrollable full-auto bursts. Despite a high authority level, the analysis highlights that semi-automatic fire is superior for this course, with full-auto consuming over 100 rounds and leaving targets standing.
This reliability test of the Calico carbine, Round 3, pushed the firearm to approximately 300 rounds without cleaning, using a 100-round drum magazine. Initial performance was strong, but fouling from the delayed blowback system eventually led to a failure to fire and a failure to chamber. Proper magazine tensioning is highlighted as critical for Calico reliability.
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