PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-LOK Upper - With BCG & CH
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Palmetto State Armory
Overview
The PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-lok Upper is a complete upper receiver designed for the AR-15 platform, featuring a 20-inch barrel optimized for the 5.56 NATO caliber. Its rifle-length gas system ensures smooth cycling and reliability, while the 1:7 twist rate accommodates a wide range of bullet weights, providing versatility for various shooting applications. This upper is frequently found in builds that prioritize a rifle gas system and utilize the .223 Wylde caliber for enhanced accuracy and chambering flexibility.
Specifications
PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-LOK Upper - With BCG & CH
Build history on GunPartPicker
Builders have been adding the PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-LOK Upper - With BCG & CH to their builds on GunPartPicker since February 2026. All time, it ranks #321 of the 1,655 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 $359.99, so there haven't been real sales lately. Buying today, the lowest price is $359.99 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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Frequently Built With
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