Hi, I am new to the Airsoft world. I use the guns in photography sessions. I recently purchased what I believe to be an Echo 1 E3DSR (an HK91 Clone). The piece of metal that the bi pod legs attach to, that also attaches to the rifle, has snapped in two. I can not post a pic because I am new to the forum/site & do not have enough posts. Any recommendations as to where I can find a replacement part? Thank you in advance for your help!