.450 Follower

.450 Follower

thingiverse

This is an insert to convert a standard metal AR magazine to accept the a .450 Bushmaster cartridge. Simply slip it in at an angle and rotate upright. This also works with the .50 Beowulf and I believe it will work with the .458 SOCOM. A standard 5.56 30 round magazine will hold 10 of these larger rounds in a single stack formation.

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