PSA GEN4 10.5" 9mm 1/10 Nitride 9" Lightweight M-LOK Railed Upper - With BCG & CH
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Palmetto State Armory
Overview
The PSA Gen4 10.5" 9mm Upper Receiver is a complete assembly designed for the AR-15 platform, featuring a 10.5-inch barrel with a twist rate of 1:10, ideal for stabilizing a variety of bullet weights. This upper is chambered in 5.56 NATO, making it versatile for different shooting applications while ensuring reliability and accuracy. Builders often use this upper in compact, maneuverable builds suited for close-quarters engagements or range use.
Specifications
PSA GEN4 10.5" 9mm 1/10 Nitride 9" Lightweight M-LOK Railed Upper - With BCG & CH
Available Merchants(1)
Prices checked
Price Alert
Price and stock
Availability is good for the PSA GEN4 10.5" 9mm 1/10 Nitride 9" Lightweight M-LOK Railed Upper - With BCG & CH: it was in stock at one retailer or another nearly every day in September 2026, and today the one retailer we track has it in stock. Prices barely moved in September 2026, holding around $329.99, so there haven't been real sales lately. Buying today, the lowest price is $329.99 at Palmetto State Armory, which matches the best price we saw in September.
Prices checked · refreshed daily across 37 retailers
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