PSA 8.5 inch pistol length 5.56 barrel had correct headspace out of the box with my Forster gauges. Pistol gas at 8.5 is the right length. Nitride coating handles the suppressed heat well. Cycles 55 to 77gr ball reliably.


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Palmetto State Armory
Overview
The PSA 8.5" AR-15 barrel is designed for the 5.56 NATO caliber and features a pistol-length gas system, which is ideal for short-barreled builds. With a 1:7 twist rate, this barrel stabilizes a wide range of bullet weights, enhancing accuracy and performance. This barrel is commonly found in compact AR-15 pistol builds, where maneuverability and reliability are key considerations.
Based on build data
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Cmmg Ar-15 Forward Assist Kit | 3 | |
| Strike Industries Ar Forward Assist With Hex Design Black | 3 | |
| TPS Arms AR-15 Safety Selector, Black - AR1033 | 3 | |
| Wilson Combat Ar-15 Billet Upper Receiver | 3 | |
| TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031 | 3 | |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 3 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Pistol | 100% |
Builds in the community that include the PSA 8.5" AR-15 5.56 NATO 1:7 Pistol Length Nitride Barrel
| Build | Parts | Total |
|---|---|---|
![]() | 8 | $639.12 |
![]() | 10 | $785.09 |
| 29 | $3891.32 | |
![]() | 18 | $628.27 |
![]() | 12 | $1192.19 |
![]() | 14 | $854.09 |
![]() | 21 | $712.75 |
1 global rating
PSA 8.5 inch pistol length 5.56 barrel had correct headspace out of the box with my Forster gauges. Pistol gas at 8.5 is the right length. Nitride coating handles the suppressed heat well. Cycles 55 to 77gr ball reliably.