PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear MBUS

Name: PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear MBUS
Brand: Palmetto State Armory
SKU: 77932952
Price: 339.99 USD
Availability: InStock

All Palmetto State Armory upper receivers

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Palmetto State Armory PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear Mbus - Upper Receiver for AR-15 - view 1

Palmetto State Armory PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear Mbus - Upper Receiver for AR-15 - view 2

Palmetto State Armory PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear Mbus - Upper Receiver for AR-15 - view 3

Palmetto State Armory PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear Mbus - Upper Receiver for AR-15

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Palmetto State Armory

Overview

The PSA 16" Nitride 1:7 M4 Carbine Upper Assembly is a complete upper designed for the AR-15 platform, featuring a 16-inch barrel chambered in 5.56 NATO. With a carbine-length gas system and a 1:7 twist rate, this upper provides reliable cycling and optimal stabilization for a wide range of bullet weights. Its OD Green finish adds a tactical aesthetic, making it a popular choice for builds focused on functionality and style.

Specifications

MPN77932952

Caliber5.56 NATO

Barrel Length16

Gas System LengthCarbine

AssemblyComplete

PlatformAR-15

ColorOD Green

Twist Rate1:7

Receiver TypeM4

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PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear MBUS

3 options

Available Merchants(1)

Prices checked Nov 13, 2026

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$339.99

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Build history on GunPartPicker

Builders have added the PSA 16" Nitride 1:7 M4 Carbine 5.56 NATO MOE AR-15 Upper Assembly, OD Green - with BCG/CH & Rear MBUS to their builds on GunPartPicker. Since April 2026, it ranks #549 of the 2,053 upper receivers builders have added.

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today the one retailer we track has it in stock. Prices barely moved in October 2026, holding around $329.99, with no real sale all month. Buying today, the lowest price is $339.99 at Palmetto State Armory.

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Updated Nov 14, 2026 · from real builds on GunPartPicker · Prices checked Nov 13, 2026 · refreshed daily across 37 retailers