Too many options - Magpul Industries PRS GEN3 Precision-Adjustable Stock for AR15/M16 and AR10/SR25 platforms

I have one on a ar10 so I bought this for a savage stealth magnum (which comes with the ar buttstock). It wouldn’t fit (tube length and diameter) the stealth comes with a carbine buffer tube and this will only fit on the “rifle” or a2(?) buffer tube. I kept it to maybe install it on a different rifle.