PSA "M16A4" 20" Quad Rail Upper w/ BCG & CH
All Palmetto State Armory upper receivers
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Palmetto State Armory
Overview
The PSA "M16A4" 20" Quad Rail Upper w/ BCG & CH is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
PSA "M16A4" 20" Quad Rail Upper w/ BCG & CH
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
PSA "M16A4" 20" Quad Rail Upper w/ BCG & CH ranked #232 of the 844 upper receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #348 of the 2,072 upper receivers builders have added.
Today the one retailer we track is out of stock. Listed prices start at $509.99 at Palmetto State Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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