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DPMS 5.56 turned into 50 cal

1K views 1 reply 2 participants last post by  Ring 
#1 ·
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?
 
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