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Top knotch upper - Spikes Tactical M4 Flat Top Upper
by
RedLetterRevenge,
Verified Owner
from TX, United States
Written on May 27, 2026
RedLetterRevenge's Review of Spikes Tactical M4 Flat Top Upper
This upper definitely fits snug in my aero lower. The last upper I had installed on those lower was very loose in comparison and even adjusting the screw under the take down pin didn’t take up all the slop. With this upper there’s no worry of any kind of looseness or slop between it and the lower.
Would Recommend:
Yes
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