1. Lower Receiver:

   • Manufacturer: Sharps Bros.
   • Model: "The Jack"
   • Material: Billet 7075-T6 aluminum
   • Finish: Typically hard coat anodized
   • Design: Intricately machined with a skull-shaped magwell, providing a distinctive and aggressive look.

2. Upper Receiver:

   • Forged or billet aluminum Sharps Bro. MFG

3. Barrel:

   • Caliber: 5.56 NATO
   • Material: Chrome-moly or stainless steel 
   • Length: 16 inches 
   • Twist Rate: 1:7)
   • Muzzle Device: Muzzle brake.

4. Handguard:

   • Type: Free-float 
   • Material: Aluminum
   • Length: Mid-length or carbine-length (based on barrel length)
   • Features: M-LOK or KeyMod slots for accessories, rail sections for optics and attachments.

5. Stock:

   • Type: Fixed
   • Material: Polymer
   • Color: Black

6. Grip:

   • Material: Polymer or rubber
   • Color: Custom blue or black with blue accents.

7. Fire Control Group:

   • Trigger: Single-stage 
   • Components: Hammer, trigger, and disconnector.

8. Charging Handle:

   • Type: Standard or ambidextrous
   • Material: Aluminum
   • Finish: Anodized to match or complement the build.

Custom Blue Parts:

The blue parts on this custom AR-15 may include:

• Handguard: Either fully blue or with blue accents.
• Stock: Blue stock or black stock with blue highlights.
• Grip: Blue grip or black grip with blue accents.
• Small Parts: Blue anodized parts such as trigger guard, magazine release button, takedown pins, and safety selector.

Additional Features:

• Optics and Sights: COmes with Cheap Red Dot
• Accessories: Likely includes rail covers, sling mounts, and other custom features in blue to match the theme.
• Magazine: Typically includes a 30-round magazine (may vary based on jurisdiction).

This custom AR-15 is designed for both aesthetic appeal and functional performance, offering a unique look with its blue parts and the distinctive skull design of "The Jack" lower receiver. It combines the modularity and reliability of the AR-15 platform with custom features to suit the owner's preferences.