Will not let you upgrade – Gun Builder ELITE HD - Modern Weapons, Sniper & Assault Rifles Review

I’ve used earned coins to get new weapon packs 20+ times and it always lands on ones I already own ( I own less than half). Its a good app but obviously is a scam to get more money out of you to get more weapon packs.
Review by Greggyman on Gun Builder ELITE HD - Modern Weapons, Sniper & Assault Rifles.