Proof Research 12.5" 300BLK Carbon Fiber 1:7 Pistol AR-15 Barrel - 100523
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Proof Research
Overview
The Proof Research 12.5" 300BLK Carbon Fiber 1:7 Pistol AR-15 Barrel - 100523 is a barrel. Compare prices from multiple merchants and find the best deal.
Specifications
Proof Research 12.5" 300BLK Carbon Fiber 1:7 Pistol AR-15 Barrel - 100523
September 2026 on GunPartPicker
Proof Research 12.5" 300BLK Carbon Fiber 1:7 Pistol AR-15 Barrel - 100523 ranked #77 of the 250 barrels builders added on GunPartPicker in September 2026. Builders on GunPartPicker first added it to a build in July 2026.
It was out of stock everywhere we track for all of September 2026, and today 4 of the 6 retailers we track have it in stock. Buying today, the lowest price is $999 at Optics Planet, above September's low of $899, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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