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Great 5.7 upper. - AR57 ULT 12in Barrel 5.7x28mm Upper Receiver Assembly

by Larry Scheller, Verified Owner from IA, United States Written on October 13, 2024
Review for AR57 ULT 12in Barrel 5.7x28mm Upper Receiver Assembly
AR57 ULT 12in Barrel 5.7x28mm Upper Receiver Assembly
AR57 ULT 12in Barrel 5.7x28mm Upper Receiver Assembly
$811.95 $699.99 Save 14%
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Larry Scheller's Review of AR57 ULT 12in Barrel 5.7x28mm Upper Receiver Assembly

I configured mine for an AR pistol home defense build. Plenty of capacity and less over penetration than 5.56.
Would Recommend: Yes
5 of 6 found the following review helpful.
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Last updated 2026-05-21 UTC.