DIAMOND ALTER RAK BOW PACKAGE M.O COUNTRY DNA 21-31 IN. 8-70 LBS. RAK LH Alter R.A.K. Compound Bow Package is a split limb design outfitted with Synchronized Binary Cam System. This bow is capable of speeds up to 320 fps. Featuring Powershift technology which is a rotating module design for DIY draw length adjustment from 21"-31" and a draw weight adjustment of 8-70 lbs.