About this rifle barrel
Proof Research 100523 AR Style 300 Blackout 12.50" Threaded Carbon Fiber/Steel is a rifle barrel for AR-15, 12.50 in, 1:7 in twist.
Check the gas system length, muzzle threads and profile against your handguard and gas block. The twist rate tells you which bullet weights the barrel is happiest with; 1:7 and 1:8 handle heavy bullets, 1:9 and slower favor light ones.
Manufacturer details
PROOF Research’s match-grade carbon fiber barrels are stronger, lighter, and as accurate as the finest precision steel barrels and will maintain their performance in the harshest conditions.
Features
- Up to 64% lighter than traditional steel barrels
- Match-grade accuracy
- Improved heat dissipation for cooler and longer lasting barrels
- No point-of-impact shift during high-volume fire
- Reduced harmonic barrel vibration
- Unprecedented durability
Specifications
- Brand: Proof Research
- Fits: AR-15
- Length: 12.50 in
- Twist: 1:7 in
- Barrel Type: Pistol Length
- Finish: Carbon Fiber
- Bore Type: Rifled
- Barrel Features: Carbon Fiber Wrapped
- Manufacturer Part #: 100523
- UPC: 843068100523
Buying from WBT Guns
- Delivery: Ships to your door anywhere in the United States, or pick it up free at our La Mesa store.
- Payment: Pay in full or finance with Credova.
- Questions: Fitment or compatibility questions? Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has served shooters since 2012.
A note on accuracy. Specifications, fitment and images come from the manufacturer and can contain errors or change without notice. If a detail matters to your purchase, call us and we will confirm it before you order. Any compliance notes are general information, not legal advice; California and local laws change, and the rules that apply depend on the firearm the part goes on.
