PSA JAKL 8.5" 300 Blackout 1/8 Nitride Complete Upper With BCG, Bolt Catch & Roll Pin, Smoke
Palmetto State Armory
Overview
The PSA JAKL 8.5" 300 Blackout Complete Upper is designed to provide a fully assembled upper receiver that includes a barrel length of 8.5 inches, optimized for the 300 Blackout caliber. With a 1:8 twist rate, this upper is crafted to stabilize a wide range of bullet weights, making it versatile for various ammunition choices. This complete upper is most commonly found in pistol builds, allowing builders to create compact and powerful firearms suitable for close-range engagements.
Specifications
PSA JAKL 8.5" 300 Blackout 1/8 Nitride Complete Upper With BCG, Bolt Catch & Roll Pin, Smoke
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Build history on GunPartPicker
Builders have been adding the PSA JAKL 8.5" 300 Blackout 1/8 Nitride Complete Upper With BCG, Bolt Catch & Roll Pin, Smoke to their builds on GunPartPicker since February 2026. All time, it ranks #230 of the 1,654 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 300 Blackout, nearly all on pistol-length gas, and nearly all AR-15.
Updated · from real builds on GunPartPicker
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