Its not really light Noveske barrels are heavy even their light profile tend to be heavy.
The Pig works great and there is no lose in accuracy. The pig is also somewhat heavy.
I built a replica with mostly the same parts just switched out some things like stock and tiger as well as some other minor lighter v7 parts. Its a really cool looking gun and I thought I was going to love it. But once it was done I immediately had regret. I tend to lean towards purpose built and this thing is just to long for its design. It should really be shorter. In the end I shortened it up to an 11.5" and changed the pig out for a flash hider and a suppressor which actually ended up making things around the same size and weight so I didnt gain much or loose much its probably damn near the same just a tad quieter. The pig however is also good and sending sound down range so it might not even seem as quite.
With all that said if you already have a few other rifles I say go for it. It is a pretty sweet looking rifle, I just saw better options and at the time the infidel was my only gun.
My Infidel
Edit the pig is not a flash hider it actually redirects the blast concussion down range which also redirects the sound down range a bit. If your shooting next to someone or shooting from the prone position in the dirt its going to be pretty useful in deflecting that concussion down range rather then into the guy beside you or rather than throwing the dirt up around you making it hard to see.