What calibers can I use with a regular milspec lower just changing magazine and complete upper?
I know 6.8spc (anyone have one? how do you like it?)
22lr (with or without dedicated upper)
5.7x28 with FN type magazine on top is all I have seen for this...
I found all these on DPMS but not sure which of them will work without a dedicated lower for that caliber.
.204 Ruger
.223 Remington
5.56x45mm
6.8mm Remington SPC
7.62x39mm
.243 Winchester
.260 Remington
.338 Federal
6.5 Creedmoor
.458 socom
Also most important question: is it legal to put what ever caliber upper I want on a m16 FA lower? Or do you have to stay with 5.56? Which calibers are compatible with FA m16 lower as opposed to SA(if legal to do so)?
I have the feeling it's just too good to be true that you could by a m16 FA and drop whatever upper in different calibers you want on it...
I know 6.8spc (anyone have one? how do you like it?)
22lr (with or without dedicated upper)
5.7x28 with FN type magazine on top is all I have seen for this...
I found all these on DPMS but not sure which of them will work without a dedicated lower for that caliber.
.204 Ruger
.223 Remington
5.56x45mm
6.8mm Remington SPC
7.62x39mm
.243 Winchester
.260 Remington
.338 Federal
6.5 Creedmoor
.458 socom
Also most important question: is it legal to put what ever caliber upper I want on a m16 FA lower? Or do you have to stay with 5.56? Which calibers are compatible with FA m16 lower as opposed to SA(if legal to do so)?
I have the feeling it's just too good to be true that you could by a m16 FA and drop whatever upper in different calibers you want on it...
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