Sons of Liberty Gun Works Broadsword L89 .223 Wylde Barreled Upper - 14.5" P/W NOX

The Sons of Liberty Gun Works Broadsword L89 .223 Wylde 14.5-inch barreled upper combines SOLGW's billet Broadsword upper receiver with the L89 Drivelock rail system — the extended barrel nut, Drivelock tensioning crossbolts, keyed upper receiver face, anti-rotation tabs, and stainless steel center index dowel that together produce the most rigid two-piece AR-15 upper interface SOLGW offers, in .223 Wylde for maximum accuracy with both mil-spec 5.56 and match .223 ammunition, with P/W NOX-9 flash hider. The muzzle device is pinned and welded to achieve a legal 16-inch overall barrel length.

The SOLGW Broadsword L89 14.5-inch is a barreled upper receiver group in .223 Wylde, built on SOLGW's billet Broadsword upper receiver and L89 13.75-inch Drivelock M-LOK rail. Features: extended barrel nut, Drivelock tensioning crossbolts, keyed upper receiver face, anti-rotation tabs, stainless steel center index dowel between upper and rail. Muzzle: P/W NOX-9 flash hider. BCG and charging handle not included. Compatible with standard mil-spec contour lower receivers. 14.5-inch barrel with NOX-9 flash hider pinned and welded. NOX-9 is compatible with KeyMo-mount suppressors.

The Broadsword-89 platform is SOLGW's precision-oriented upper receiver group — the Broadsword billet upper receiver is purpose-built for precision applications where the tighter tolerances of billet machining over forging provide a more consistent barrel extension fit and a more precise upper-to-lower interface. Combined with the L89 Drivelock rail system's multiple retention mechanisms, it produces what SOLGW describes as the most rigid two-piece upper-to-handguard interface available in conventional AR-15 construction. The Drivelock tensioning crossbolts add a clamping mechanism between the handguard and upper receiver beyond the barrel nut alone, creating a system where the handguard is both threaded on via the extended barrel nut and mechanically clamped against the upper receiver face. The stainless steel center index dowel between the upper and rail provides a third retention interface — the dowel keys the handguard's rotational and lateral position to the upper receiver body independently of the barrel nut and crossbolts. The keyed upper receiver face mates with the rail's matching geometry to prevent any relative movement between the two components. Together, these mechanisms minimize the micro-movement at the upper-to-handguard interface that causes point-of-impact shift under load — the defining concern for a precision-oriented platform. The .223 Wylde chamber is cut to accept both NATO-spec 5.56x45mm ammunition and SAAMI-spec .223 Remington, providing maximum ammunition flexibility while maintaining the tighter chamber geometry that improves accuracy with match-grade .223 loads compared to a standard mil-spec 5.56 chamber. The billet Broadsword upper retains compatibility with standard mil-spec contour lower receivers. BCG and charging handle are not included.

Caliber: .223 Wylde (accepts 5.56 NATO and .223 Remington). Barrel: 14.5 inches, Liberty Fighting Barrel. Rail: L89 13.75-inch Drivelock M-LOK. Upper: billet Broadsword. Lockup: extended barrel nut, Drivelock tensioning crossbolts, keyed upper face, anti-rotation tabs, stainless steel center index dowel. Muzzle: P/W NOX-9 flash hider. BCG and charging handle: not included. Lower compatibility: standard mil-spec contour.

Billet Broadsword upper provides tighter tolerances than forging for more consistent barrel extension fit and upper-to-lower interface. L89 Drivelock crossbolts, keyed face, and center index dowel create three independent retention interfaces between upper and handguard — the most rigid two-piece AR-15 upper construction SOLGW offers. .223 Wylde chamber accepts both 5.56 NATO and match .223 Remington for maximum ammunition flexibility with precision-oriented chamber geometry.

The right barreled upper for precision AR-15 builders who want maximum upper-to-handguard rigidity and .223 Wylde chamber geometry — Broadsword billet upper, L89 Drivelock multi-point lockup, and Liberty Fighting Barrel without BCG or charging handle.