This is the Butler Creek 25 round magazine for the Savage A17 rifle in .17HMR.
It has a nice feature set which includes:
- Metal feed lips
- Anti tilt follower
- Constant force stainless spring
- Full length thumb assist
- Magazines clip together
- Can be dismantled for cleaning
We have heard of workshop savvy customers who have modified these mags to fit the B17 but it requires modification to rework the catch, which is a different height on the B17 compared to the A17.