AR-15/M16 .300 BLK S2W Hammer-Forged Barrel — Strength-to-Weight Contour, 5/8x24 Thread, Optimized for Subsonic & Supersonic Loads (UPC 815604015226)
Unlock the full potential of .300 AAC Blackout with the S2W (Strength-to-Weight) hammer-forged barrel designed for AR-15/M16 platforms. Built for reliability, heat management, and accuracy, this barrel’s S2W contour gives you the stiffness of a heavy tube without unnecessary bulk—ideal for both suppressed subsonic and high-velocity supersonic loads. Whether you’re assembling a precision-minded pistol/carbine or upgrading a tired upper, this hammer-forged .300 BLK barrel delivers repeatable performance shot after shot.
Why Choose an S2W Hammer-Forged .300 BLK Barrel
Strength-to-Weight Contour (S2W): A purposeful profile that resists POI shift during long strings without turning your build into a front-heavy anchor.
Hammer-Forged Durability: Cold hammer forging compacts the steel grain, producing a strong, consistent bore and chamber for long service life.
Subsonic & Supersonic Friendly: Gas porting and .300 BLK geometry are tuned to run common sub and super loads (final reliability depends on your specific buffer, spring, and suppressor).
Everyday Ruggedness: A duty-ready exterior finish resists corrosion and the hard knocks of training, travel, and field use.
Key Features at a Glance
Caliber: .300 AAC Blackout (.300 BLK)
Construction: Cold hammer-forged steel barrel
Contour: S2W (Strength-to-Weight) for stiffness and heat control
Muzzle Threads: 5/8x24 (typical for .300 BLK muzzle devices and suppressors)
Feed Ramps: M4 extension for reliable feeding
Finish: Protective exterior finish for corrosion resistance; inside bore designed for extended life and easy maintenance
Platform: AR-15/M16 compatible (.300 BLK specific)
UPC: 815604015226
(Exact barrel length, twist rate, and gas system can vary by production run; see the product label or your retailer’s listing for those precise values.)
Built for Real-World Performance
Temperature Stability: The S2W profile combats heat-induced wander, helping maintain point of impact as barrels warm during drills or extended range days.
Smooth Cycling: Proper extension and feed geometry aid reliability with a wide range of bullet weights commonly used in .300 BLK.
Suppressor-Ready: Standard 5/8x24 threads make it straightforward to add brakes, comps, flash hiders, or suppressor mounts (follow all local laws).
Perfect For
Suppressor-centric builds: Subsonic stealth with a gas system configurable for quiet, clean function.
General-purpose .300 BLK carbines/pistols: From home-range training to ranch use, enjoy soft recoil and flexible ballistics.
Accuracy-focused shooters: Benefit from hammer-forged consistency and S2W rigidity for confident groups.
What You’ll Notice on Day One
Balanced Handling: Less nose-heaviness than traditional heavy barrels, with more stability than pencil profiles.
Cleaner Maintenance Rhythm: Durable finishes and quality forging help fouling release more easily.
Consistent POI: S2W profile plus hammer-forged bore promotes predictable results with vetted ammo.
Suggested Pairings
Adjustable gas block (especially for suppressed use)
5/8x24 muzzle device matched to your use case (brake, comp, flash hider, or suppressor mount)
Quality .300 BLK magazines clearly labeled to avoid caliber mix-ups
Appropriate buffer/spring to tune for your chosen ammo/suppressor combo
Installation Tips (Best Practices)
Confirm Caliber: Mark and segregate .300 BLK uppers and mags; never mix with 5.56/.223.
Proper Torque: Barrel nut torque and anti-seize per spec; ensure straight gas tube alignment.
Headspace Check: Always verify with proper gauges when pairing new bolt and barrel.
Muzzle Device: Verify 5/8x24 threads; time and torque per device maker’s instructions.
Function Test & Zero: Test both subsonic and supersonic loads if you plan to run both; record zero offsets.
Specifications
Caliber: .300 AAC Blackout
Manufacturing: Cold hammer-forged
Profile: S2W (Strength-to-Weight)
Muzzle Threads: 5/8x24
Extension: M4 feed ramps
Finish: Corrosion-resistant exterior; long-life bore
Platform: AR-15/M16 (.300 BLK specific)
UPC: 815604015226
Note: For best results with subsonic/suppressed shooting, consider an adjustable gas system and tune your buffer weight. Always comply with local, state, and federal regulations for barrel length and suppressor use.
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SEO Title: AR-15/M16 .300 Blackout S2W Hammer-Forged Barrel — 5/8x24, Strength-to-Weight Contour (UPC 815604015226)
Meta Description (≤160 chars): Build a reliable .300 BLK AR with an S2W hammer-forged barrel. 5/8x24 threads, forged durability, optimized for sub & super loads. UPC 815604015226.
Target Keywords: 300 BLK hammer forged barrel, S2W barrel 300 blackout, AR-15 300 BLK barrel 5/8x24, hammer forged AR barrel, M4 feed ramps 300 blackout, UPC 815604015226
Alt Text (Images): “.300 BLK S2W hammer-forged AR-15/M16 barrel with 5/8x24 threads and M4 feed ramps.”
FAQ
Q: What twist rate works best for .300 BLK?
A: Many .300 BLK barrels use fast twists (e.g., 1:7–1:8) to stabilize heavier subsonic bullets. Check your specific barrel’s marked twist to match ammo accordingly.
Q: Will this run both subs and supers?
A: Yes—.300 BLK is designed for both. For suppressed subsonic use, an adjustable gas block and buffer tuning can improve reliability.
Q: What muzzle thread does it use?
A: 5/8x24 is the standard for .300 BLK. Always verify your specific barrel before installing devices.
Q: Can I fire 5.56/.223 in a .300 BLK barrel?
A: No. Never chamber or fire ammunition that does not match the barrel caliber markings.
Q: Is the barrel compatible with standard AR-15 parts?
A: Yes—use standard AR-15/M16 components (gas system length and block size depend on your specific barrel’s configuration).
Build your .300 Blackout the right way—with a hammer-forged S2W barrel that balances strength, heat control, and accuracy for dependable performance in the field, on the clock, and at the range.
The End
