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V Seven Weapon Systems Titanium Combo Pack AR 15 AR 10 QD Endplate and Castle Nut Ionbond Black SKU COMBO TI BLK UPC 177777102418
Product Description
The V Seven Weapon Systems® Titanium Combo Pack (SKU: COMBO-TI-BLK / UPC: 177777102418) unites two essential lower receiver components—the Titanium Quick Detach (QD) Endplate and the Lightweight Titanium Castle Nut—into an uncompromising, ultra-lightweight buffer retention package. Engineered specifically for high-performance Mil-Spec AR-15, M4, and AR-10/SR-25 platform builds, this assembly delivers approximately 50% weight reduction compared to conventional Mil-Spec steel receiver components while dramatically elevating structural durability and tactical utility.
Precision CNC-machined from billet Grade 5 Titanium (Ti-6Al-4V), both the castle nut and endplate exhibit superior tensile strength, thermal resistance, and structural rigidity. The exterior is treated with a specialized IonBond Diamond-Like Carbon (DLC) black finish that penetrates the titanium surface, offering outstanding scratch resistance, low coefficient of friction, and complete immunity to moisture, environmental saltwater spray, and harsh bore cleaning solvents.
The integrated receiver endplate features a centered, flush-profile quick-detach sling swivel socket that accepts all standard push-button QD swivels, providing streamlined rotational mobility without adding external bulk or snag points to your stock assembly. Designed to interface seamlessly with Mil-Spec carbine and A5 buffer tubes, the castle nut incorporates precision drive notches alongside a dedicated side-access spanner hole, ensuring positive tool engagement and slipless torquing during bench assembly.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Direct fit for all Mil-Spec AR-15, M16, M4, and AR-10/SR-25 lower receivers equipped with standard 1.148" diameter carbine, pistol, or VLTOR A5 receiver extensions (1-3/16"-16 UN threads). CRITICAL: NOT compatible with fixed A1/A2 rifle receiver extensions, non-threaded lower systems, or oversized proprietary buffer tubes. Manufacturer recommended installation torque for the titanium castle nut is 25 ft-lbs (300 in-lbs). Apply a light film of synthetic anti-seize or Aeroshell 64 grease to buffer tube threads to prevent titanium-on-aluminum galling. While titanium castle nuts can be staked with a carbide center punch, staking must be executed with deliberate support to avoid fracturing hardened punch tips.
- Ensure the host firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
- Clean receiver extension threads thoroughly with isopropyl alcohol and apply a thin, uniform coating of Aeroshell 64 or anti-seize compound across all engagement threads.
- Slide the V Seven Titanium Castle Nut onto the receiver extension (notched face oriented forward toward the muzzle), followed by the Titanium QD Endplate with the QD socket facing rearward.
- Thread the receiver extension into the lower receiver to capture the buffer retainer pin and spring, seat the QD endplate alignment tab into the receiver notch, and torque the castle nut to 25 ft-lbs using a calibrated armorer wrench.
- Perform a full mechanical function check: verify positive buffer and spring retention, install a push-button QD sling swivel to verify mechanical lockup, and dry-fire verify cycle operation before staging.
Key Features
- Grade 5 Titanium Construction: CNC-machined from Ti-6Al-4V billet for an optimal strength-to-weight ratio, delivering 50% weight savings over standard steel.
- IonBond Black DLC Finish: Diamond-Like Carbon treatment provides unmatched surface hardness, lubricity, and total resistance to corrosion and solvents.
- Integrated Flush QD Socket: Endplate features a central QD swivel receptacle for snag-free two-point or single-point sling attachment.
- Dual-Interface Castle Nut: Features standard Mil-Spec three-notch armorer wrench engagement plus a drilled side hole for single-point hook spanners.
- Complete Combo Architecture: Factory-paired castle nut and endplate engineered to work together with identical metallurgical tolerances and finish uniformity.
- 100% American Made: Designed, machined, and finished in the United States with a manufacturer lifetime warranty.
Product Specifications
- Brand: V Seven Weapon Systems®
- Model/Series: Titanium Combo Pack (Titanium QD Endplate & Titanium Castle Nut)
- MPN / SKU: COMBO-TI-BLK / COMBO TI BLK
- UPC: 177777102418
- Platform Compatibility: AR-15 / M4 / M16 & AR-10 / SR-25 Lower Receivers (Mil-Spec Buffer Tubes)
- Material: Grade 5 Titanium (Ti-6Al-4V)
- Finish: IonBond Black (Diamond-Like Carbon / DLC)
- Castle Nut Thread Pitch: 1-3/16"-16 UN (Mil-Spec)
- Recommended Torque: 25 ft-lbs
- Combined Net Weight: 16.9 grams (0.60 oz)
- Country of Origin: United States
