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American MilSim


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About Syk

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  1. I know this is old but doing the math a 5.56 UTM has the equivalent KE of a .20 doing 560 fps... approx 2.9 J. it is a .45g projectile doing about 375 fps. From personal experience they hurt... bad. they also have a little steel marker bb inside the assembly that likes to embed itself in unprotected flesh. I caught a couple of these in the face, the scars make cool stories.
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