PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-LOK Upper - With BCG & CH - 5165448422
All Palmetto State Armory upper receivers
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Palmetto State Armory
Overview
The PSA 16" Mid-Length 5.56 NATO Upper is a complete assembly designed for the AR-15 platform, featuring a 16-inch barrel with a mid-length gas system that ensures reliable cycling while reducing recoil and improving accuracy. The 1:7 twist rate stabilizes a wide range of bullet weights, making this upper versatile for various ammunition types. This upper is commonly found in builds that prioritize a mid-length gas system and 5.56 NATO caliber for enhanced performance and shootability.
Specifications
PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-LOK Upper - With BCG & CH - 5165448422
Available Merchants(1)
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Build history on GunPartPicker
Builders have been adding the PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13.5" Lightweight M-LOK Upper - With BCG & CH - 5165448422 to their builds on GunPartPicker since February 2026. All time, it ranks #655 of the 1,709 upper receivers builders have added.
Availability is good: 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 $349.99, so there haven't been real sales lately. Buying today, the lowest price is $349.99 at Palmetto State Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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