help me identify this AR part

[HavokCycle]

i picked up parts to assemble an A2 today.. i'm accustomed to carbines and this is my first rifle, so I'm unfamiliar with everything.
the seller helped me assemble a kit to complete the firearm but since I had to change the build plans due to what was available.. i got a tad bit confused.

wtf is this part???

 

[indykid]

Uh, would you believe that is the underfolder operating parts for an AKM? Yup, Kalashnikov underfolder parts. Chinese more specifically.

 

[HavokCycle]

Uh, would you believe that is the underfolder operating parts for an AKM? Yup, Kalashnikov underfolder parts. Chinese more specifically.

that would explain things. that means itd go to the underfolder i bought for my WASR today..... never mind and thanks lol

 

[TJ Kackowski]

lol ... left over parts are really a *****! Just don't break out the bigger hammer to make them fit.