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Sons of Liberty Gun Works

SOLGW Precision SPR V2

Sons of Liberty Gun Works' SPR barrel uses 416R stainless steel with a .223 Wylde chamber for tight groups with both .223 and 5.56.

Quick Specs

Price
Contact for price
Weight
N/A
Brand
Sons of Liberty Gun Works
Category
barrel

Features

  • 16" – 18" lengths available
  • 416R stainless steel
  • .223 Wylde chamber
  • SPR contour
  • 1:7 twist
  • Hand-lapped bore

Compatibility Tags

family: ar-patternbarrel: long

Overview

The Sons of Liberty Gun Works Precision SPR V2 barrel is purpose-built for accuracy-focused builds where precision is the paramount concern. Manufactured from 416R stainless steel, this barrel uses the same material found in high-end precision rifles, offering superior accuracy potential compared to standard chrome-moly barrels. The .223 Wylde chamber provides the best of both worlds, accepting both .223 Remington and 5.56 NATO ammunition while delivering match-grade accuracy with .223 loads.

Each barrel features polygonal rifling with a three-groove, 1:7 twist bore that stabilizes heavy match bullets exceptionally well. The SPR (Special Purpose Rifle) contour provides the rigidity needed for consistent accuracy while keeping weight reasonable for practical field use. With a black oxide finish and 5/8x24 muzzle threads, the barrel accommodates both standard flash hiders and precision muzzle brakes commonly used in competitive and long-range applications.

Real-world performance confirms the precision pedigree, with users routinely reporting half-MOA groups with quality match ammunition. While the stainless construction means a shorter service life compared to 4150 CMV chrome-lined barrels, SOLGW's warranty still applies. The tighter gas port sizing (.072" vs .076" on standard barrels) contributes to smoother operation and reduced wear on components, making this an excellent choice for precision shooters prioritizing accuracy over high-volume durability.

Key Features

  • 416R stainless steel construction for match-grade accuracy potential
  • .223 Wylde chamber optimized for both .223 and 5.56 accuracy
  • Polygonal rifling with 3-groove, 1:7 twist for heavy bullet stabilization
  • SPR contour balances rigidity for accuracy with practical weight
  • Precision gas port sizing (.072") for smooth operation and reduced wear
  • 5/8x24 muzzle threads accommodate precision brakes and standard devices
  • Available in 14.5", 16", and 18" lengths with appropriate gas systems

Pros

  • +Exceptional accuracy with users routinely achieving 0.5 MOA groups
  • +.223 Wylde chamber delivers match accuracy with both .223 and 5.56 ammunition
  • +416R stainless steel provides superior precision potential vs. chrome-moly
  • +Refined gas port sizing reduces system wear and improves reliability
  • +SPR contour offers excellent rigidity without excessive weight
  • +SOLGW warranty coverage provides peace of mind despite stainless construction

Cons

  • Stainless steel has shorter service life than chrome-lined 4150 CMV barrels
  • Premium pricing reflects precision-oriented design and materials
  • No chrome lining means more frequent cleaning required
  • Heavier SPR profile less ideal for lightweight or compact builds
  • Longer lengths (16", 18") limit use in short-range applications

Detailed Specifications

lengths
14.5", 16", 18"
chamber
.223 Wylde
Material
416R stainless steel
finish
Black oxide
twist
1:7
rifling
Polygonal, 3-groove
gasSystem
Mid-length (14.5", 16"), Rifle-length (18")
gasPort
.072" diameter
muzzleThreads
5/8x24 TPI
profile
SPR (Special Purpose Rifle) contour
weight
3 lbs (approximate)

Compatible Platforms

+23 more

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