I believe the standard configuration for variant 1 is with the safety/decocker only on the left. An ambi safety/decocker is available, but would have probably had to have been installed later. If you are converting to LEM, many folks remove the safety/decocker entirely, so yes -- that would be rare indeed. With LEM, the decocker feature is more of a hindrance than anything else, so you may want to look into getting the detent plate that allows for "safety only" -- variant 5/6, I believe.
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