PSA 7" Nitride 5.56 1/7 6" Lightweight M-LOK Upper - With BCG & Charging Handle - 5165447572
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Palmetto State Armory
Overview
The PSA 7" Nitride 5.56 Upper Receiver is a complete assembly designed specifically for the AR-15 platform, featuring a 7-inch barrel with a 1:7 twist rate, ideal for stabilizing a variety of bullet weights. This upper utilizes a pistol-length gas system, which contributes to a more compact build while ensuring reliable cycling with 5.56 NATO ammunition. Builders often integrate this upper into short-barreled rifles or pistol configurations, making it a popular choice for those looking to create compact, maneuverable setups.
Specifications
PSA 7" Nitride 5.56 1/7 6" Lightweight M-LOK Upper - With BCG & Charging Handle - 5165447572
September 2026 on GunPartPicker
PSA 7" Nitride 5.56 1/7 6" Lightweight M-LOK Upper - With BCG & Charging Handle - 5165447572 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 #620 of the 1,654 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 $319.99, so there haven't been real sales lately. Buying today, the lowest price is $319.99 at Palmetto State Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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