Sons of Liberty Gun Works MK1 Recce 5.56 NATO - 14.5" - P/W HUX - 1x30rd Magazine - AR-15 Rifle

The Sons of Liberty Gun Works MK1 Recce is SOLGW's passion project — a complete billet rifle built around maximum rail utility, minimal deflection, and a purpose-built Recce barrel with 3-groove polygonal rifling, chrome-lined 4150 chrome-moly steel, and a titanium extended barrel nut, with the Liberty 2-Stage Trigger, NP3-coated BCG, A5 buffer system, and a HUXWRX muzzle device pinned and welded for a 16-inch legal overall length.

The SOLGW MK1 Recce is a complete semi-automatic 5.56 NATO AR-15 built on a billet upper, lower, and rail receiver set. Features a 14.5-inch medium contour Recce P3 barrel (4150 chrome-moly, chrome-lined, 3-groove polygonal rifling, mid-length gas, .750-inch gas journal, 5/8x24 muzzle thread) with HUXWRX muzzle device pinned and welded to achieve 16-inch legal OAL, titanium extended barrel nut with thermal management coating, 13.75-inch MK1 rail with continuous M1913 top rail, integrated cable routing, laser texturing, 7-sided M-LOK slots, NP3-coated BCG with Liberty Charging Handle (small handles), Liberty 2-Stage Trigger (4.5 lbs total), Badger ambidextrous safety, MK1 maritime bolt release, A5 receiver extension (9-position) with A5H2 buffer and stainless steel action spring, B5 grip, Magpul DT-PR stock. Includes one 30-round PMAG.

The MK1's billet receiver set is the construction foundation that distinguishes it from SOLGW's forged-receiver lineup — billet machining from solid aluminum stock produces tighter tolerances at the barrel extension interface, upper-to-lower fit, and the MK1-specific rail junction than a forged receiver can achieve, providing the dimensional consistency that supports the accuracy potential of the Recce barrel. The medium contour Recce P3 barrel is built around 3-groove polygonal rifling — a rifling profile that produces a superior gas seal between the projectile and bore compared to conventional cut-rifled barrels, delivering more consistent chamber pressure across a broader range of bullet weights and constructions. This is what SOLGW means by "ammunition forgiveness" — the polygonal profile engages a wider variety of projectile geometries reliably, and the reduced surface area contact of the polygonal groove pattern contributes to extended barrel service life. Chrome lining on 4150 chrome-moly steel combines two layers of durability: 4150 provides higher carbon content and wear resistance than standard 4140 at the bore surface, and chrome lining adds a hard, corrosion-resistant layer that further extends bore life under sustained fire and simplifies cleaning. The titanium extended barrel nut with thermal management coating addresses the heat management problem that a pinned and welded muzzle device creates — the P/W joint concentrates heat at the muzzle end of the barrel nut, and the titanium construction with thermal coating manages that heat more effectively than a standard steel barrel nut. The NP3 coating on the BCG provides a nickel-PTFE surface that is harder than chrome and more slippery than any other surface treatment, reducing friction throughout the bolt carrier's cycling stroke for improved reliability in adverse conditions and simplified cleaning. The Liberty 2-Stage Trigger at 4.5 lbs total delivers a deliberate first stage and a clean second-stage break. The Badger ambidextrous safety accommodates both-handed operation. The A5 buffer system with A5H2 buffer and stainless steel spring manages bolt carrier velocity for reliable cycling across the full range of 5.56 loads the rifle will see. The MK1 maritime bolt release, enlarged magazine well, enlarged magazine release fencing, and optimized bolt catch fencing are ergonomic refinements that improve speed and reliability in dynamic use.

Caliber: 5.56 NATO. Barrel: 14.5-inch medium contour Recce P3, 4150 chrome-moly, chrome-lined, 3-groove polygonal rifling, mid-length gas, .750-inch gas journal, 5/8x24 muzzle thread. Muzzle: HUXWRX, pinned and welded (16-inch legal OAL). Rail: MK1 13.75-inch, 7-sided M-LOK, continuous M1913 top rail, integrated cable routing, laser texturing. Barrel nut: titanium with thermal management coating. BCG: NP3-coated. Charging handle: Liberty (small handles). Trigger: Liberty 2-Stage, 4.5 lbs. Safety: Badger ambidextrous. Buffer: A5 with A5H2 and stainless steel spring. Stock: Magpul DT-PR. Grip: B5. Receivers: billet upper, lower, rail set. Maritime bolt release. Integral trigger guard. Includes: one 30-round PMAG.

3-groove polygonal rifling delivers superior ammunition forgiveness and extended barrel life versus conventional cut rifling — consistent gas seal across a broader range of projectile geometries. Chrome-lined 4150 chrome-moly stacks two durability layers for maximum bore service life. NP3 BCG coating is harder than chrome and more slippery than any other treatment for improved reliability and cleaning ease. Titanium extended barrel nut with thermal coating manages P/W heat concentration. Billet receiver set provides tighter tolerances than forging throughout. HUXWRX P/W for direct FLOW suppressor compatibility.

The right complete fighting rifle for shooters who want SOLGW's most refined platform — billet construction, polygonal chrome-lined Recce barrel, NP3 BCG, Liberty 2-Stage Trigger, and HUXWRX suppressor integration in a 14.5-inch P/W 5.56 package with a 30-round PMAG included.