PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride - 7782393
Palmetto State Armory
Overview
The PSA AR-15 Barrel is a 16" M4 profile barrel chambered in 5.56 NATO, designed to deliver reliable performance for various builds. Its carbine-length gas system and .750 gas block diameter make it a versatile choice, allowing for smooth cycling and compatibility with standard AR-15 components. With a twist rate of 1:7, this barrel effectively stabilizes a wide range of bullet weights, making it suitable for builds focused on both precision and versatility.
Specifications
PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride - 7782393
Build history on GunPartPicker
Builders on GunPartPicker first added the PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride - 7782393 to a build in May 2026.
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 $149.99, so there haven't been real sales lately. Buying today, the lowest price is $149.99 at Palmetto State Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 36 retailers
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Builds Featuring This Part
See all 1 →Builds in the community that include the PSA AR-15 Barrel 5.56 NATO 16" M4 Carbine-Length Nitride - 7782393
| Build | Parts | Total |
|---|---|---|
 | 18 | $1017.86 |
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