PSA 16" 5.56 NATO 1/7 Mid-Length Stainless Steel 13.5" Lightweight M-LOK Classic Rifle KIT
All Palmetto State Armory upper receivers
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Palmetto State Armory
Overview
The PSA 16" 5.56 NATO Mid-Length Upper Receiver is a complete assembly designed for AR-15 platforms, featuring a 16-inch barrel with a 1:7 twist rate that stabilizes a wide range of bullet weights. The mid-length gas system provides a smoother shooting experience by balancing recoil and gas pressure, making it a solid choice for both accuracy and reliability. This upper receiver is commonly found in builds that emphasize 5.56 NATO caliber and utilize a mid-length gas system for enhanced performance.
Specifications
PSA 16" 5.56 NATO 1/7 Mid-Length Stainless Steel 13.5" Lightweight M-LOK Classic Rifle KIT
Available Merchants(1)
Prices checked
Price Alert
September 2026 on GunPartPicker
PSA 16" 5.56 NATO 1/7 Mid-Length Stainless Steel 13.5" Lightweight M-LOK Classic Rifle KIT ranked #267 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #960 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 $419.99, so there haven't been real sales lately. Buying today, the lowest price is $419.99 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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