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Outer shell of the ball
MP Gen 4C
Surface texture on the ball (sanded, polished, etc)
800, 1000, 2000, 4000 Abralon® Polished w/ PowerHouse Factory Finish
Lane Condition
Length and/or amount of oil on the lane
Medium to Dry
Color of the ball
Available weights
12-16 LBS
Weight block inside the ball
Core Type
Basic shape type of the core (Symmetric, Asymmetrical, Pancake)
Radius of Gyration: measurement related to weight distribution of the core. This affects how quickly a ball will get in to a roll. A ball with a higher RG will roll later. A ball with lower RG will roll sooner.
14 LB. - 2.54
15 LB. - 2.51
16 LB. - 2.51
Difference between the RG of the core's x-axis and y-axis. Indicates track flare potential and stability. A higher differential means more flare potential and less stabilty. A low differential ball will be more stable and have less flare potential.
14 LB. - .054
15 LB. - .057
16 LB. - .052

503C Honor Roll

< See All
  • Jesse Robinson791
  • Memo Rosales300/720
  • gary dewayne schlafke269/655
  • dennis bissonnette300/290
  • George Akeman300/238/289/827

503C Product Notes


The all-new 503C is designed to be an improved version of the original 505C. What you can expect from the new 5 Series C ball is more length and an even more controllable ball motion at the breakpoint. From tournament bowlers to the average league player, this ball will undoubtedly be the first ball out of the bag. This beautiful Purple/Blue/White Pearl ball in its out of the box 4000 sanded and polished state is designed for medium to dry lanes. In a larger volume of oil, just adjust the surface to a 2000 grit scuffed surface and you will gain an additional 5 boards of hook for the average player - some may see even more. 

Find the 503C in a Pro Shop near you >

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