PSA AR-15 Upper 5.56 16" Mid-Length Nitride 13.5" M-LOK - 5165448513
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Palmetto State Armory
Overview
The PSA AR-15 Upper features a complete assembly with a 16-inch barrel chambered in 5.56 NATO, designed to optimize performance with a mid-length gas system. This configuration provides a smoother cycling action, reducing recoil and enhancing accuracy, making it suitable for both precision shooting and dynamic applications. Builders commonly use this upper in setups focused on versatility and reliability in the 5.56 caliber platform.
Specifications
PSA AR-15 Upper 5.56 16" Mid-Length Nitride 13.5" M-LOK - 5165448513
August 2026 on GunPartPicker
PSA AR-15 Upper 5.56 16" Mid-Length Nitride 13.5" M-LOK - 5165448513 was the tenth most added upper receiver on GunPartPicker in August 2026, behind the PSA AR-15 Built Stealth Upper Receiver - No T Marks - 516444539, with about 2% of all upper receivers added to builds. Up from #11 in July. Builds with this upper receiver are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. The best price drifted down from $249.99 to $219.99 over August 2026 without a real sale. Buying today, the lowest price is $249.99 at Palmetto State Armory, above August's low of $219.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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