Proof Research AR-15 Stainless Barrel 12.5in .300 Blackout Pistol Gas 1:7 Twist
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Product Description The Proof Research AR-Style Barrel (MPN 100530) is a traditional steel AR-platform barrel engineered to deliver an optimum balance of high tensile strength and toughness for demanding firing conditions. Crafted from stainless steel for excellent corrosion resistance and erosion wear characteristics, this 12.5-inch .300 Blackout barrel uses a pistol-length gas system and a fast 1:7 twist with 5-groove rifling to support reliable performance in compact AR-style builds. The muzzle is threaded 5/8"-24 TPI for compatibility with common muzzle devices and suppressor mounts.
Product Highlights
- 416R stainless steel AR-15 type barrel designed for strength under extreme chamber pressures
- 12.5-inch .300 AAC Blackout barrel with pistol-length gas system for compact builds
- 1:7 twist rate with 5 grooves (rifled bore)
- 5/8"-24 TPI threaded muzzle for popular muzzle devices and suppressor-ready setups
- Corrosion-resistant stainless finish with excellent erosion and wear characteristics
Specs
- Brand: Proof Research
- Manufacturer Part Number: 100530
- UPC: 843068100530
- Platform/Fit: AR-Platform (AR-15 type)
- Caliber: .300 AAC Blackout (300 Blackout)
- Barrel Length: 12.50 in
- Gas System Length: Pistol length
- Twist Rate: 1:7
- Rifling: 5 grooves (rifled bore)
- Muzzle Thread: 5/8"-24 TPI
- Gas Block Journal Diameter: 0.750 in
- Gas Port Size: 0.086 in
- Material: 416R stainless steel
- Finish/Color: Stainless
Specifications
- Manufacturer:
- Proof Research
- Category:
- barrel
- Caliber:
- .300 AAC Blackout
- Platforms:
- AR-15
- Interfaces:
- Muzzle thread: 5/8-24
- Length:
- 12.5"
- Estimated velocity:
- 1,700-2,250 fps
- UPC:
- 8228998479994
- MPN:
- 100530
- Required Component:
- Yes
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