Auto Sear Pin M16

Can I machine down an AR-15 lower where the rear pin is to fit an

Colt M16A1 Auto Sear Assembly

AR-15/M16/M4 Auto Sear w/Spring and Pin

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M16 Full Auto Ambi Conversion kit- Milspec - KAK INDUSTRY

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M16 Auto Sear

M16 Auto Sear Pin

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M16 AR-15 Full Auto Lower Parts Kit with FA Sear - Class 3 Parts

M16a1 full auto?

Auto Sear Pin M16

M16 4-Way

To set it straight! M16 spec : r/ar15