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Palmetto State Armory
Overview
The PSA "Sabre" MK12 Mod 0 SPR Upper is a complete upper receiver designed for precision shooting with an 18-inch barrel chambered in 5.56 NATO. Its rifle-length gas system enhances reliability and reduces recoil, making it suitable for extended shooting sessions. This upper is often found in builds that prioritize accuracy and versatility, particularly in longer-range engagements.
Specifications
PSA "Sabre" MK12 Mod 0 SPR Upper
Available Merchants
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Build history on GunPartPicker
Builders have been adding the PSA "Sabre" MK12 Mod 0 SPR Upper to their builds on GunPartPicker since February 2026. All time, it ranks #646 of the 1,693 upper receivers builders have added.
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