Just make sure you use the M4 style handle, rather than the M16A2 handle. Both fit, but the rifle handle will have an 800 meter sight elevator, rather than the 600 meter elevator of the carbine. And while you can BSZ the sight for 50 meters, or 100 meters, the fast reference sight elevation clicks will not be regulated for the 22LR round, regardless of which handle you use.
Oh, and depending on your tastes and pocketbook, the Chinese do make "Knock off" handles of lower quality and cheaper price. Of course, on a plastic .22 receiver, does it matter?
YMMV
Ofc.JL
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LEO, Instr, Armorer, Gov's 20
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