PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride
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Palmetto State Armory
Overview
The PSA AR-15 Barrel in 5.56 NATO features a 16-inch M4 profile, designed for optimal performance in a carbine-length gas system. The nitride finish enhances durability and resistance to corrosion, making it well-suited for extended use. This barrel is a popular choice among builders focused on carbine setups that prioritize reliability and accuracy in the 5.56 caliber.
Specifications
August 2026 on GunPartPicker
PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride ranked #97 of the 298 barrels builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #171 of the 763 barrels builders have added.
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. Prices barely moved in August 2026, holding around $99.99, so there haven't been real sales lately. Buying today, the lowest price is $99.99 at Palmetto State Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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Frequently Built With
The part most often added in each category by the 6 builds that include this one
PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953
Blem PSA AR-15 Complete Upper Receiver
Wilson Combat AR-15 Starburst Gunfighter Pistol Grip Black
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
BLEM PSA AR-15 Lower Safe/Fire
Aero Precision Gas Tube, Carbine Length - Melonite
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
Builds Featuring This Part
See all 3 →Builds in the community that include the PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride
| Build | Parts | Total |
|---|---|---|
 | 8 | $929.89 |
 | 24 | $3878.55 |
 | 8 | $437.74 |
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