PSA "M4A1" 14.5" P&W Quad Rail Upper w/ BCG & CH
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Palmetto State Armory
Overview
The PSA "M4A1" 14.5" P&W Quad Rail Upper is a complete upper assembly designed for the AR-15 platform, featuring a 14.5-inch barrel chambered in 5.56 NATO and a carbine-length gas system. This upper provides excellent reliability and performance, making it suitable for a variety of shooting applications. Commonly found in builds aimed at a compact yet versatile configuration, it offers a solid foundation for both tactical and recreational use.
Specifications
PSA "M4A1" 14.5" P&W Quad Rail Upper w/ BCG & CH
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Build history on GunPartPicker
Builders have been adding the PSA "M4A1" 14.5" P&W Quad Rail Upper w/ BCG & CH to their builds on GunPartPicker since March 2026. All time, it ranks #917 of the 1,654 upper receivers builders have added.
Updated · from real builds on GunPartPicker
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