HM Defense HM Spiral Fluted SS bbl Rifle Upper Kit 16UP-SPFSS-556
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$699
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Updated
Aug 26, 2026
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Specifications
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MPN
16UP-SPFSS-556
Description
This HM Defense Rifle Upper Kit features a 16" spiral fluted stainless steel barrel, BCG, and charging handle (headspaced). HM Defense HM Spiral Fluted SS bbl Rifle Upper Kit 16UP-SPFSS-556
