Can someone tell me if the Adams Arms factory built 7.5 Tactical EVO upper has a pinned gas block not a set screw gas block?
Thanks,
SK

I believe all of their factory uppers come with pinned on gas blocks.  Of the 4 I've ever had (2x 16" and 2x 11.5"), they were all pinned on.

I believe the clamp on gas blocks are only used with the retro-fit kits.  You can buy the clamp on gas block separately, as well.

Edit:  I should add that only applies to the standard 3-position railed gas block (which all of mine have been or are).  If you're asking about the XLP, I do not know.  I think (but am not 100% certain) that all of the XLP gas blocks are set screw.

Factory uppers from AA have pinned blocks.

The conversion kits come with screws.