Maxim Defense Gen 6 CQB Stock / Brace System Housing Adapter - Housing Assembly Only, Dual Anti-Rotational QD Sling Swivel Sockets, Ambidextrous Guide Rod Tracking Channels, 7075-T6 Aluminum, Anodized Black Finish - MXM-48520 / 680017485207
Product Description
Upgrading a close-quarters combat (CQB) carbine, restoring a high-mileage compact AR receiver extension setup, or staging a modular PDW build requires receiver components built to tight mechanical tolerances. Replacing damaged housing blocks or converting existing assemblies using sub-spec components can introduce guide rod binding, loose castle nut lockup, or premature slop across your guide tracks on your bench. The **Maxim Defense® Gen 6 CQB Housing Adapter - Housing Only (MXM-48520 / 680017485207)** flatlines these structural wear bottlenecks, delivering a **precision replacement housing block** built to original factory specs.
Proudly engineered and CNC-machined to rigid military metrics in the United States by Maxim Defense, this Gen 6 CQB system housing is carved from a solid block of high-tensile **7075-T6 structural aircraft-grade aluminum alloy** finished in a non-reflective matte black anodized dressing. Serving as the primary mounting centerpiece for Maxim's renowned Gen 6 CQB stock and brace systems, this housing features dual integrated anti-rotational QD sling swivel sockets along the sides for seamless sling attachment. The precision-milled guide channels accept Maxim's twin steel guide rods smoothly, while the internal threads interface directly with standard AR-15 lower receiver buffer tube threads. This turn-key replacement housing block gets your ultra-compact receiver extension running smoothly straight from your workbench.
Engineered to drop seamlessly into the Gen 6 CQB system architecture on Mil-Spec AR-15 lower receivers, this factory-calibrated structural component ensures absolute alignment directly from your workspace bench.
*Armorer Bench Notes & Real-World Receiver Extension Staging Guidance: The Maxim Defense MXM-48520 housing component arrives workspace ready as a standalone 7075-T6 aluminum housing adapter shell. PROPRIETARY MAXIM DEFENSE SYSTEM COMPONENT MATRIX: This replacement component is engineered natively, strictly, and dimensionally to function as the central housing block for **Maxim Defense Gen 6 CQB Stock and CQB Brace assemblies**. *System Component Replacement Checklist:* This listing is for the **bare housing block adapter only**—it does *not* include the buffer tube, buffer, recoil spring, guide rods, or rear buttstock/brace endplate. Verify on your bench that you are pairing this component with genuine Maxim Gen 6 guide rods and buffer tube hardware. Armorer Workbench Custom Staging Sequence: 1. Visually and physically confirm your host AR-15 lower receiver is completely clear of live ammunition, the upper receiver is separated, and the lower cavity is safe and clear. 2. Clean the outer threaded extension threads of your lower receiver with a lint-free cloth to strip off old thread locker, carbon scale, or storage oil layers. 3. Thread the housing adapter onto the lower receiver threads, ensuring the alignment indexing tab seats flush into the rear takedown pin detent channel. 4. Torque the receiver extension assembly to factory specs using a proper armorer castle nut wrench on your bench. 5. Guide your Maxim Gen 6 dual steel guide rods into the lateral tracking channels of the housing to verify smooth, bind-free sliding travel. 6. Install your chosen Maxim CQB buffer tube, custom buffer, and recoil spring, then cycle the assembly manually several times to verify full mechanical lockup before heading downrange.*
Key Features
- Factory Original Gen 6 Replacement Component: Direct OEM housing replacement for Maxim Defense Gen 6 CQB Stocks and CQB Braces, ensuring exact factory fitment and indexing.
- Dual Integrated Anti-Rotational QD Sockets: Features built-in QD sling swivel attachment points on both sides of the housing to prevent sling tangles during dynamic movement.
- Precision CNC-Milled 7075-T6 Aluminum: Carved from solid 7075-T6 aircraft-grade aluminum alloy billet to offer maximum tensile strength while keeping weight to an absolute minimum.
- Mil-Spec Hard-Coat Anodized Finish: Protected by a heavy-duty Type III matte black hard-coat anodized armor skin that shrugs off abrasion, holster wear, and aggressive cleaning solvents.
- Smooth Dual Guide Rod Alignment Channels: Milled with ultra-tight tolerances along the lateral guide tracks to guarantee friction-free extension and retraction of telescoping guide rods.
- Universal Mil-Spec AR-15 Receiver Interface: Threads directly onto standard Mil-Spec AR-15 lower receiver extension threads without custom machining or receiver alterations.
Product Specifications
- Brand: Maxim Defense® (Premium Tactical Systems Group / Saint Cloud, MN)
- Model Line: Gen 6 CQB Stock & Brace Modular Receiver Extension Accessories
- MPN/SKU Code: MXM-48520 (Gen 6 CQB System Housing Adapter Black Standard SKU)
- UPC Code Profile: 680017485207
- System Generation Compatibility: Maxim Defense Gen 6 CQB Stocks & Gen 6 CQB Braces Natively
- Host Receiver Fitment: Standard Mil-Spec AR-15 / M4 Lower Receivers (1-3/16"-16 UN Threads)
- Sling Attachment Interface: 2x Ambidextrous Anti-Rotational Flush-Fit QD Sling Swivel Sockets
- Structural Material Base: Precision CNC-Machined Solid 7075-T6 Structural Aerospace Grade Aluminum Billet
- Exterior Finish Dressing: Type III Hard-Coat Anodized Non-Reflective Matte Black Shield
- Full Kit Component Checklist: 1x Maxim Defense Gen 6 CQB Housing Adapter Block Only
- Packaging Format Class: Factory Original Sealed Maxim Defense Branded Heavy Poly Inventory Pack
- Product Type Category: Rifle Components / AR-15 Receiver Extensions & Stock System Housing Adapters
- Overall Structural Housing Width: ~1.85 Inches (~47.0 mm Wide-Track Clearance Axis)
- Net System Operating Mass: ~3.20 Ounces (~90.7 Grams Lightweight High-Strength Aluminum Mass)
- Global Quality Certifications: Formulated to Rigid US Commercial and Professional Duty Standards
- Warranty Tracking Protection: Fully Backed by Maxim Defense Factory Lifetime Limited Guarantee
