Trenga swingarm

Who made there swingarms or did they make their own?

I think they made their own...don't know though. They did rebadge a lot of parts though.....EX: My Trenga/LRD pipe/silencer. I'm guessing they made the swingarms themselves simply because it's not that hard to extend a swingarm or if I remember correctly from Trenga, grab a few pieces of mild steel and weld it together. The hardest part is the carrier.
 
heres a pic of the one i found on google....the guy says its a trenga +3....but it looks like a stock extended

trenga.jpg



pics kinda hard to see