Moderator, if there is a better place for this please move it.
I am not a gun builder or smith. Very novice but learning.
I just saw a DPMS 5.56 that still has original lower but the upper has a safeharbor 50 cal. Is this healthy?
Will this shorten the life of the lower?
What is the possible negative cause and effects here, if any?
I am not a gun builder or smith. Very novice but learning.
I just saw a DPMS 5.56 that still has original lower but the upper has a safeharbor 50 cal. Is this healthy?
Will this shorten the life of the lower?
What is the possible negative cause and effects here, if any?