All warranty and replacement parts can be addressed through the Primary Arms site. Navigate to the bottom of the page and select the link labeled "Return Policy." Cheers
The unit has should have 1/2 MOA adjustments. I believe the "1 MOA" listing is most likely a typo.
Yes, as long as your 10/22 has a Weaver or Picatinny rail.
The Primary Arms CLxZ Gen II Micro Dot Sight comes with a low picatinny mount which will allow for absolute co-witness with standard height AR sights. The Primary Arms CLxZ Gen II Micro Dot Sight uses the Aimpoint Micro footprint. So any riser mount that is compatible with that footprint will work with the Primary Arms CLxZ Gen II Micro Dot Sight.
The Primary Arms CLxZ Gen II Micro Dot Sight could be mounted to the Primary Arms 3x32 Gen III Compact Prism Scope. However, I recommend using an open reflex sight to mount to the top of the Primary Arms 3x32 Gen III Compact Prism Scope.
Yes, this red dot will work with the MBUS. There are also different mounts available to whether you choose to go absolute or lower 1/3 co-witness.
Yes this optic will work with a T1-T2 footprint.
This product does include a riser but is compatible with standard T1 risers.
Fun choice of gun. The Kel-Tech 2000 carbine has design elements for concealment, close quarter shooting, and the railing is positioned above the barrel. Since the railing is more distant to the shooter's eye and the general nature of the weapon is for closer quarters, a red dot optic is a wise choice. The difficulty is because this carbine does fold, having a mounted optic will prohibit the gun to fold to the intended position. I would consider either mounting the red dot with a quick-detach (QD) mount, or mounting a reflexive type red dot with a 45 degree off-set mount. The QD mount would allow the red dot to be positioned on top of the gun, but detaching the optic would be necessary for closing the gun. On the other hand, the 45 degree off-set mount could allow for the optic to be fixed. Hope this helps and best of luck.
Yes, this mount will work.