Hello, I'm thinking about "building" a 350FPS bolt action on the cheap and stumbled upon this one:
gunfire.com
It says it's upgraded but Gunfire has failed to detail which upgrades it has, although I believe it's just the piston, spring guide and spring with the stock 90º trigger, if you had some more info, it would be great.
Now, my plan is to leave it as stock as possible changing only the bucking for a ML autobot, 6.03 wide 300mm long TBB a 340/350 spring and use 0.30gs. Would this be a reliable good performance build? Thanks!

Replika karabinu snajperskiego SW-10 (Upgraded) - oliwkowa
Wersja Upgraded Wykonanie: metal + tworzywo sztuczne Długość: 1070mm Waga: 2125g Kolor: oliwkowy Prędkość wylotowa: ~500 FPS Napęd: sprężynowy Producent: Snow Wolf
It says it's upgraded but Gunfire has failed to detail which upgrades it has, although I believe it's just the piston, spring guide and spring with the stock 90º trigger, if you had some more info, it would be great.
Now, my plan is to leave it as stock as possible changing only the bucking for a ML autobot, 6.03 wide 300mm long TBB a 340/350 spring and use 0.30gs. Would this be a reliable good performance build? Thanks!