Thoughts on Aero Precision

Hi, Merle.

Are you sure you have an M4E1 Aero Precision upper and not a standard Aero Precision M4?
I just purchased one (M4E1) last week and the AP Atlas R one and S one will not fit due to the design of the E1 upper.
Had to go (fatter) Enhanced Handguard.

I would have rather had the slimmer R one or S one but standard M4 uppers are hard to come by right now.
Nice rig you built.
John.

M4E1 upper
View attachment 7391844
Yep, they make that same upper with standard threads as well.
 
Aero upper/lower that rides in the back of the truck, front of the truck, doesn't get beat up but not babied. Hasn't failed yet.
Sucks cleaning it, suppressor blow back.
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