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AR15 upper interchangeability?
jev1969
Member Posts: 2,691
Someone is selling a Colt M16 SPR .22LR in the local want ads. I googled the rifle and looked at some detailed pics. The lowers look identical to 5.56 lowers. I searched but cannot find if a 5.56 upper will work on this lower. Common sense tells me there must be a difference but from the pics the lowers look the same. The S&W .22's have different size take down pins to prevent changing to a 5.56 upper. Does anyone have one of these rifles that can answer this for me? Thanks
Comments
Neal
Someone is selling a Colt M16 SPR .22LR in the local want ads. I googled the rifle and looked at some detailed pics. The lowers look identical to 5.56 lowers. I searched but cannot find if a 5.56 upper will work on this lower. Common sense tells me there must be a difference but from the pics the lowers look the same. The S&W .22's have different size take down pins to prevent changing to a 5.56 upper. Does anyone have one of these rifles that can answer this for me? Thanks
The .22s look authentic, but you can NOT covert one of the Colt (actually German Umarex manufactured, Colt licensed) .22 guns into 5.56x45 (.223).