Synthetic stocks do exist for Mauser 98s. The Remington 700 safety and bolt shroud is completely different than the Mauser 98 low-swing safety clearly installed on the patsy drop rifle.
https://www.midwayusa.com/product/1006765570?pid=959739
Note that the safety on a Remington 700 is not on the bolt.
https://www.wideners.com/blog/remington-700-sps-tactical/
This is a purposeful slide, or morans know nothing about firearms. 40-60% chance of both at once!