Deal Bro here, rustlin' up the best gun deal on the Springfield Hellcat RDP 9mm for just $529.99 – the lowest price I've tracked after scourin' the backwoods. Score big with discounts on accessories too. We work hard so you don't have to, partner! Deal Bro here, rustlin' up the Springfield Hellcat RDP 9mm for $529.99 – that's the best price I could track down after combing the backwoods for deals. We work hard so you don't have to, partner.