Proof Research B6 .308 Win Bolt Action — 20 in Carbon-Fiber Wrapped Threaded Barrel, TriggerTech Special Flat-Face, Picatinny Rail
This Proof Research B6 in .308 Win stands out as a custom barreled action built for precision. It pairs a 20-inch carbon-fiber wrapped stainless steel Proof barrel attached to the B6 action with a TriggerTech Special 1.0–3.5 lb flat-face trigger and a one-piece Picatinny scope rail. The right-hand action features a spiral-fluted bolt, and the receiver and barrel carry clean, factory markings from Columbia Falls, MT.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This example shows minimal markings from previous handling and use. Please refer to the photos for additional detail.
What’s Included
- Owner's Manual
The configuration is a barreled action with no bottom metal or magazine installed, making it a single-shot as configured. The one-piece Picatinny scope rail is factory-installed on the receiver for straightforward mounting of your preferred equipment.
The 20-inch Proof Research carbon-fiber wrapped stainless steel barrel is threaded at the muzzle (thread pitch unspecified) and marked "308 WIN." The receiver is marked "PROOF," "B6," "Columbia Falls, MT," and "Multi," with a recoil lug at the receiver front for solid bedding.
A TriggerTech Special 1.0–3.5 lb flat-face, single-stage trigger with Zero-Creep technology is installed, offering a crisp, consistent break and user-adjustable pull weight. This is in line with the customization details and complements the precision-focused setup.
The right-hand B6 bolt action uses a spiral-fluted bolt body for smooth cycling. The finish is black, matching the receiver and overall presentation. Collectively, these features make this a clean, purpose-built B6 platform ready for a premium build in .308 Win.
Key build notes: Proof barrel attached to the B6 action; TriggerTech Special 1.0–3.5 lb flat-face trigger installed; one-piece Picatinny scope rail installed.



