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Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver
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$189.99
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Cstrom's Review of Aero Precision M4E1 223 Remington/5.56 NATO Enhanced Upper Receiver
Very tight fit to a non matched Aero lower. My rear take down pin (from Aero lower parts kit) was really tight but broke in after about 20-30 cycles. The first few times I had to use a punch to get it to start. Other than that, it's flawless
Pros:
- Very tight clearances
Cons:
- Very tight clearances
Would Recommend:
Yes