- Savage OEM center feed mag body upper for sure fit and function
   - Lower machined from 6061-T6511 aluminum
   - Custom made coiled spring
   - Machined aluminum follower
   - Black anodized finish
   - Rear slot allows for visual round count
   - Extends just two inches below bottom of stock
   - ABSOLUTELY NO MODIFICATION NECESSARY to factory bottom metal

Question: Do I need an Axis style magazine or an original centerfeed style magazine?

 If your magazine has a metal bottom and it goes into a metal frame in the stock with a lever release to remove it, then you have the original centerfeed magazine.

If your magazine has a plastic bottom with a tab on the front that holds it into the stock and is used to release the magazine, then you have an Axis style magazine.