Sons of Liberty Gun Works Buffer Tube Fits AR 15 M4 Rifles Matte Finish Black 10 Position Buffer Tube SOLGW INT10POS TUBE UPC 657628674436
Product Description
The Sons of Liberty Gun Works (SOLGW) 10-Position Maritime Intermediate A5 Buffer Tube in Matte Black (MPN: SOLGW-INT10POS-TUBE) is a premium receiver extension engineered to optimize length-of-pull adjustability, recoil management, and mechanical cycling reliability on AR-15 and M4 platforms. Precision-machined in the USA from ultra-durable 7075-T6 aircraft-grade aluminum, this extended-length Intermediate / A5-style tube replaces standard 6-position carbine receiver extensions to provide a smoother recoil impulse and improved bolt group velocity control.
Featuring 10 micro-indexing position detents, the SOLGW-INT10POS-TUBE gives shooters unmatched fine-tuning capability to establish an exact length-of-pull across varying body types, body armor configurations, and shooting stances. Built to military specifications with Class 3A rolled threads, the tube incorporates SOLGW’s specialized maritime drainage ports. These precision-drilled relief holes allow rapid water evacuation if submerged, ensuring immediate operation in wet or harsh maritime field conditions without hydraulic lockup.
Treated with a Type III hardcoat anodized black finish for superior abrasion, corrosion, and wear resistance, the SOLGW 10-position buffer tube accepts all standard adjustable Mil-Spec carbine buttstocks. Backed by Sons of Liberty Gun Works' legendary lifetime warranty and commitment to hard-use duty components, it serves as an essential foundation for custom intermediate/A5 recoil system builds.
Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Fits standard forged and billet AR-15 / M4 lower receivers. This is an Intermediate / A5-length receiver extension (approx. 8 inches in internal length) and REQUIRES an intermediate/A5 buffer (e.g., SOLGW A5 / VLTOR A5 / BCM Intermediate buffer) paired with an A5 or rifle-length recoil spring. (Note: Do NOT use standard 3.25" carbine buffers or carbine recoil springs, as this will result in improper bolt carrier stroke, failure to lock back, or internal lower receiver damage).
- Perform a complete firearm safety check: drop the magazine, pull the charging handle rearward, lock the action open, and visually inspect the chamber to verify zero live rounds are present.
- Thread a standard castle nut onto the SOLGW-INT10POS-TUBE with the notched staking grooves facing rearward.
- Slide a receiver endplate (standard or QD) onto the tube with the alignment tab facing forward toward the lower receiver keyway notch.
- Thread the buffer tube into the lower receiver housing until it depresses and captures the buffer retainer pin and spring without binding.
- Press the endplate flush against the rear of the lower receiver, thread the castle nut forward, and hand-tighten.
- Using an AR-15 castle nut wrench, torque the castle nut to Mil-Spec torque (38–40 ft-lbs) and stake the endplate steel into two castle nut notches using a center punch.
- Insert an Intermediate/A5-length recoil spring and Intermediate/A5 buffer into the tube until captured by the retainer pin, then slide your Mil-Spec adjustable stock onto the 10-position extension.
Key Features
- 10-Position Micro-Adjustment Extension: Offers 10 distinct length-of-pull positions to precisely match shooter ergonomics and gear staging.
- Intermediate / A5-Length Architecture: Extended internal length improves recoil spring geometry and buffer travel for flatter shooting and reduced felt recoil.
- Maritime Fluid Drainage Ports: Specialized relief holes allow instant water evacuation when operating in marine or adverse wet environments.
- 7075-T6 Aircraft Aluminum Construction: Precision CNC-machined from dense 7075-T6 aluminum for maximum structural rigidity and thread durability.
- Type III Hardcoat Anodized Black Finish: Non-reflective matte black finish provides chemical, scratch, and corrosion resistance.
- Mil-Spec Class 3A Rolled Threads: Ensures smooth, rock-solid thread engagement with standard AR-15 forged and billet lower receivers.
Product Specifications
- Brand: Sons of Liberty Gun Works (SOLGW)
- Model/Series: Intermediate 10-Position Maritime Buffer Tube
- MPN / SKU: SOLGW-INT10POS-TUBE
- UPC: 657628674436
- Tube System Profile: Intermediate / A5 Length
- Positions: 10 Adjustment Positions
- Platform Compatibility: AR-15 / M4 Lower Receivers
- Required Components: A5 / Intermediate Buffer & Rifle / A5 Recoil Spring
- Material: 7075-T6 Aluminum
- Finish / Color: Matte Black Hardcoat Anodized
- Weight: 4.5 oz
- Country of Origin: USA
