Sons of Liberty Gun Works Precision SPR 6mm ARC AR-15 Barrel - Mid-Length - SPR - 16"

Accuracy is the entire point. The Sons of Liberty Gun Works Precision 6mm ARC SPR barrel is SOLGW's most accurate barrel offering -- 416R stainless steel, black oxide coated, polygonally rifled with a 3-groove bore -- built in the SPR contour that prioritizes rigidity and consistency over weight savings.

Features:

• 16" barrel, SPR profile
• Chambered in 6mm ARC
• 416R stainless steel construction
• Black oxide finish, no chrome lining
• 1:7 twist, 3-groove polygonal rifling
• Mid-length gas system
• Threaded 5/8x24, optimized for suppressor use
• .750" gas block journal

416R stainless steel provides the material properties that precision barrel makers have relied on for decades -- superior corrosion resistance, tight grain structure, and inherent accuracy potential that chrome moly steel cannot match at the same consistency. Three-groove polygonal rifling reduces friction, minimizes fouling accumulation, and delivers consistent bullet engagement, supporting the sub-MOA performance the 6mm ARC cartridge is capable of. The SPR contour prioritizes barrel rigidity over weight, reducing harmonic variability during firing and maintaining point-of-impact consistency across temperature extremes.

Purpose-built for 6mm ARC precision rifle builds, designated marksman configurations, and suppressed precision AR-15 platforms.

Sons of Liberty Gun Works is known for building no-compromise AR-15 components trusted by armed professionals and serious civilian shooters. Made in the USA.