Just over paid for a new underfolder($425 +tax). But the more I play with it, the more gadgets I find and dont know what they are.
1. On my front sight base there is a second sight that flips up. WTF is this? It  is on the base facing the shooter and rotates forward to cover the post sight.

2. It has the slant muzzlebrake/compensator that seems to be whats on all of them now. but it also appears to have gernade launcher flip up sight as well. It conforms to the wood of the gas tube, and flips up to about 4" tall like the sks nade sights. But no launcher on the end.

Please Help
Mot

1) its a phosphorous night sight, not tritium so you have to shine a light on it first

2) it is a grenade sight plus when you flip it up it cuts off the gas block hole, therefore it won't cycle flipped up, for use of the grenade launching rounds...as for the grenade launching muzzle device, they weren't shipped with any there are several individuals making these true devices if you feel you really need one.

Quoted: Just over paid for a new underfolder($425 +tax). But the more I play with it, the more gadgets I find and dont know what they are. 1. On my front sight base there is a second sight that flips up. WTF is this? It  is on the base facing the shooter and rotates forward to cover the post sight. 2. It has the slant muzzlebrake/compensator that seems to be whats on all of them now. but it also appears to have gernade launcher flip up sight as well. It conforms to the wood of the gas tube, and flips up to about 4" tall like the sks nade sights. But no launcher on the end. Please Help Mot

I think that was an excellent price!  Sounds like you have a Yugo M70 underfolder.  Congratulations.