PSA 20'' 5.56mm 1:7 FN CHF Chrome Lined Phosphate A2 Profile Barrel
Palmetto State Armory
Overview
The PSA 20'' 5.56mm 1:7 FN CHF Chrome Lined Phosphate A2 Profile Barrel is designed for precision and performance in your AR-15 build. With a 20-inch length and a 1:7 twist rate, this barrel is optimized for stabilizing a wide range of bullet weights, making it suitable for various shooting applications. Its phosphate finish ensures durability and corrosion resistance, which is essential for maintaining reliability in the field. This barrel commonly appears in builds that utilize a pistol gas system while chambered in 5.56 NATO.
Specifications
PSA 20'' 5.56mm 1:7 FN CHF Chrome Lined Phosphate A2 Profile Barrel
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Build history on GunPartPicker
Builders on GunPartPicker first added the PSA 20'' 5.56mm 1:7 FN CHF Chrome Lined Phosphate A2 Profile Barrel to a build in April 2026.
Updated · from real builds on GunPartPicker
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