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  1. Proof Research Barrel AR-10, LR-308 6.5 Creedmoor CAMGAS Length Gas Port with Gas Tube 1 in 8" Tw...
    Proof Research Barrel AR-10, LR-308 6.5 Creedmoor CAMGAS Length Gas...
    Available
  2. Proof Research Barrel Ruger Precision Rifle Pre-Fit 260 Remington 1 in 8" Twist 4-Groove 24" 5/8"...
    Proof Research Barrel Ruger Precision Rifle Pre-Fit 260 Remington 1...
    Available
  3. Proof Research Barrel AR-10, LR-308 6.5 Creedmoor CAMGAS Length Gas Port with Gas Tube 1 in 8" Tw...
    Proof Research Barrel AR-10, LR-308 6.5 Creedmoor CAMGAS Length Gas...
    Available
  4. Proof Research Barrel AR-15 300 AAC Blackout Carbon Fiber
    Proof Research Barrel AR-15 300 AAC Blackout Carbon Fiber
    Available View More Options
  5. Proof Research Barrel Ruger Precision Rifle Pre-Fit 6mm Creedmoor 1 in 8" Twist 4-Groove 24" 5/8"...
    Proof Research Barrel Ruger Precision Rifle Pre-Fit 6mm Creedmoor 1...
    Available
  6. Proof Research Barrel AR-10, LR-308 260 Remington CAMGAS Length Gas Port with Gas Tube 1 in 8" Tw...
    Proof Research Barrel AR-10, LR-308 260 Remington CAMGAS Length Gas...
    Available
  7. Proof Research Barrel Savage Pre-Fit Standard Shank 6.5 Creedmoor 1 in 8" Twist 4-Groove 24" 5/8"...
    Proof Research Barrel Savage Pre-Fit Standard Shank 6.5 Creedmoor 1...
    Available
  8. Proof Research Barrel Blank 264 Caliber 1 in 8" Twist 4-Groove Carbon Fiber
    Proof Research Barrel Blank 264 Caliber 1 in 8" Twist 4-Groove Carb...
    Available View More Options
  9. Proof Research Barrel AR-10, LR-308 260 Remington CAMGAS Length Gas Port with Gas Tube 1 in 8" Tw...
    Proof Research Barrel AR-10, LR-308 260 Remington CAMGAS Length Gas...
    Mixed Availability View More Options
  10. Proof Research Barrel Blank 308 Caliber 1 in 10" Twist 5-Groove Carbon Fiber
    Proof Research Barrel Blank 308 Caliber 1 in 10" Twist 5-Groove Car...
    Mixed Availability View More Options
  11. Proof Research Barrel Blank 338 Caliber Sendero 1 in 9.4" Twist 5-Groove Carbon Fiber
    Proof Research Barrel Blank 338 Caliber Sendero 1 in 9.4" Twist 5-G...
    Available View More Options
  12. Proof Research Barrel AR-10, LR-308 308 Winchester 1 in 10" Twist Carbon Fiber
    Proof Research Barrel AR-10, LR-308 308 Winchester 1 in 10" Twist C...
    Available View More Options
Shop All 43 in Proof Research