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Sons of Liberty Gun Works (SOLGW) Intermediate 10-Position Maritime Receiver Extension Buffer Kit - Intermediate Length A5-Style Buffer Tube w/ Maritime Drain Holes, 5.6 oz Heavy Buffer, Sprinco Green Power Spring, Quick Detach (QD) Steel End Plate & Mil-Spec Castle Nut - SOLGW-INT10POS-KIT / 657628674429
Product Description
Fine-tuning an AR-15 rifle's gas system for smooth cycling, suppressed fire, or hard-duty durability requires a recoil buffer system engineered beyond basic mil-spec carbine dimensions. Standard 6-position carbine receiver extensions feature short stroke lengths and limited adjustment increments, causing violent recoil impulse, bolt bounce, and erratic brass ejection on your bench. The **Sons of Liberty Gun Works (SOLGW) Intermediate 10-Position Maritime Buffer Tube Kit (SOLGW-INT10POS-KIT / 657628674429)** flatlines these recoil and cycling bottlenecks, pairing an extended A5-length **10-position maritime receiver extension** with a heavy 5.6 oz buffer and Sprinco Green rifle spring.
Proudly engineered and manufactured in San Antonio, Texas by Sons of Liberty Gun Works, this complete recoil system is built around a CNC-machined **7075-T6 aluminum intermediate buffer tube**. Featuring 10 micro-adjustment stock positions, it allows shooters to dial in precise length-of-pull (LOP) for body armor, heavy coats, or optic eye relief. The receiver extension includes integrated **maritime drain holes** to vent water instantly during maritime or wet-weather ops, dry-film lubricated internal bore walls, and extended anti-rotation lip tabs that retain the buffer retainer pin under violent recoil. Complete with an intermediate 5.6 oz heavy buffer (A5H2 equivalent), Sprinco Green rifle-length power spring, QD steel end plate, and castle nut, this heavy-duty kit completely transforms your rifle's cycling dynamics straight from your armorer bench.
Engineered to thread natively into all standard MIL-SPEC AR-15 and AR-10/SR25 lower receivers, this factory-calibrated buffer system guarantees smooth bolt speed and flat recoil recovery directly from your workspace bench.
*Armorer Bench Notes & Real-World Recoil Tuning Guidance: The SOLGW-INT10POS-KIT package arrives workspace ready, containing the 10-position maritime tube, 5.6 oz intermediate buffer, Sprinco Green spring, steel QD end plate, and castle nut. A5 INTERMEDIATE LENGTH & CALIBER COMPATIBILITY MATRIX: This intermediate system utilizes an extended internal bore length (A5 standard). *Stock Compatibility Notice:* Accepts standard collapsible carbine stocks (Magpul, BCM, B5 Systems); stock body sits slightly further back than carbine tubes due to length. Compatible with **5.56 NATO, .223 Rem, .300 BLK, 6.8 SPC, and .308 Win / 7.62 NATO** lower receivers. Armorer Workbench Custom Staging Sequence: 1. Visually and physically confirm your host AR lower receiver is clear of live ammunition and detached from the upper assembly. 2. Thread the castle nut and QD end plate (smooth side facing forward) onto the lubricated 10-position buffer tube threads. 3. Depress the buffer retainer and spring into the lower receiver tower while threading the receiver extension forward until the anti-tilt lip captures the retainer pin. 4. Torque the castle nut to **38 to 40 foot-pounds** using a calibrated armorer wrench on your bench, then stake the QD end plate metal into the castle nut notch in two places. 5. Install the Sprinco Green spring and 5.6 oz buffer into the tube until latched, attach your upper receiver, and perform a manual charging cycle to verify smooth bolt catch lock-back before rolling downrange.*
Key Features
- 10-Position Intermediate Receiver Extension: Extended A5-length buffer tube provides 10 fine-tuning stock positions for precise length-of-pull customization.
- Integrated Maritime Drain Holes: Features strategically placed rear vent ports that allow water and debris to drain rapidly during amphibious or wet-weather engagements.
- Included 5.6 oz Intermediate Buffer: Heavy 5.6 oz internal mass (A5H2 weight) delays bolt unlocking time, smoothing recoil and eliminating bolt bounce.
- Sprinco Green Rifle Power Spring: Chrome-silicon wire power spring provides consistent spring tension and long service life over tens of thousands of rounds.
- Quick Detach (QD) Steel End Plate: Heavy-duty steel receiver end plate features an integrated rotation-limited QD sling swivel socket.
- Precision CNC-Machined 7075-T6 Aluminum: Hard-coat anodized 7075-T6 aluminum construction with dry-film lubricated interior walls for effortless buffer movement.
Product Specifications
- Brand: Sons of Liberty Gun Works - SOLGW (San Antonio, TX / Made in the USA)
- Model Line: Intermediate 10-Position Maritime Buffer System Series
- MPN/SKU Code: SOLGW-INT10POS-KIT (Intermediate 10-Pos Maritime Kit SKU)
- UPC Code Profile: 657628674429
- Lower Receiver Fitment: Standard MIL-SPEC AR-15 / AR-10 / SR-25 Lower Receivers
- Buffer Tube Profile: Intermediate A5-Length (7.75" Internal Length) w/ 10 Adjustment Positions
- Buffer Mass Weight: 5.60 Ounces (~158.7 Grams Intermediate A5H2 Equivalent Mass)
- Recoil Spring Specification: Sprinco® Green Chrome-Silicon Rifle-Length Power Spring
- Structural Tube Material: Precision CNC-Machined 7075-T6 Billet Aluminum
- Exterior Finish Dressing: Type III Hard-Coat Anodized Matte Black Protective Finish
- Included Accessories: 10-Pos Tube, 5.6 oz Buffer, Sprinco Green Spring, Steel QD End Plate, Castle Nut
- Packaging Format Class: Factory Original Sealed SOLGW Branded Storage Box
- Product Type Category: AR-15 Lower Receiver Components / Recoil Buffer Tube Assemblies
- Net System Mass: ~13.80 Ounces (~391.2 Grams Complete Buffer System Weight)
- Global Quality Certifications: Formulated to Rigid US Professional Duty and Military Spec Metrics
- Warranty Tracking Protection: Fully Backed by SOLGW Factory "Shield of Liberty" Lifetime Warranty
