Bumper Fitment

Just purchased a new 2015 Polaris Sportsman 570 SP Hunter edition. Added Polaris winch & plow. The only other items I am looking to purchase are front & rear brush guards. Not a fan of the shiny Polaris painted brush guards so my dealer gave me a Polaris rear guard Pt. #2878046 that fits & looks great. I asked him for Pt. #2878669 & he said it would not fit. What type of modification would I need to make this front brush guard work?