I swapped a friends 6.8 upper onto one of my AR lowers (Spikes) and I am having trouble seating the mags without a little forceable push. also it is jamming after 2 shots.
If I remember correctly, isn't it ok to put a 6.8 upper onto a 5.56 lower? What could be the problem?
Thanks,
-Ed
If I remember correctly, isn't it ok to put a 6.8 upper onto a 5.56 lower? What could be the problem?
Thanks,
-Ed