Originally Posted by Quentin
Like JonM said A2 refers to the A2 style sight built in to the carry handle (which is like the sight found on the M16A2, not the old style sight on the older M16A1.) Now the original M16, M16A1, M16A2 and M16A3 rifles had integrated (non-removable) carry handles while the revolutionary M16A4 introduced the flat top upper receiver and removable carry handle. (Many companies do use A3 for a removable carry handle but really should use the A4 terminology.) So the A4 removable carry handle does have A2 style sights built in! Clear as mud, huh!
Yep, clear as mud on a foggy day.
I think I understand though.
Originally Posted by JonM
The rear peep is just a basic two position rear peep with small and large aperture. Looks like any other ar15 rear. Adjustment quality... very rough and probably not accurate, in that move x clicks you get x movement on paper. Only rear that is click for click on paper runs about 190$ for a match grade one from rra. None actually track true less you pay for that type of precision.
For what you want to do it doesnt matter, get it sighted and leave it. After that whether it tracks true or not doesnt matter.
Honestly both bcm and spikes likely source the internal sight parts from dpms. What matters more is the actual handle itself. It doesnt take much varience in height to be too far out of kilter to not be on paper with max adjustment on the front sight post
The DPMS is worth the try, so I'll try it. Thanks.