Big Kahuna Guns Support

Welcome to the Big Kahuna Guns Support Center. Whether you’ve just purchased your Raptor 50 or are looking for maintenance tips, troubleshooting help, or warranty info — you’re in the right place.

If you still need help after reviewing this page, feel free to contact us at [email protected] or call (813) 790-7220.

Getting Started

Read the Owner’s Manual

Before handling your Raptor 50, it’s essential to read the full product manual. It includes setup instructions, safety guidelines, and maintenance recommendations.

📄 Download the Raptor 50 Manual (PDF)

Initial Setup

• Your Raptor 50 is a single-shot .50 BMG upper designed to install on a standard AR-15 lower receiver.
• A heavy-duty hammer and spring kit is included and must be installed for safe function.
• A fixed stock is required — collapsible stocks are not recommended due to the heavy recoil of the .50 BMG round.

💡 Need help installing the hammer or attaching the upper?

Visit the FAQs or email us for assistance.

Maintenance & Cleaning

Field Stripping & Reassembly

• Use a standard 3/8” wrench to remove the bolt handle.
• Clean the firing pin, bolt head, and chamber after each session.
• Always inspect for unusual wear or damage before firing.

Barrel Break-In Tips

• Clean the barrel thoroughly before first use.
• Follow a break-in procedure of 1 shot – clean – repeat for the first 10–20 rounds, then scale up to 2–3 shot groups.
• Use copper solvent to remove fouling, and always push patches from breech to muzzle.

🔧 Recommended Products

• High-temp synthetic gun oil
• Copper cleaner
• Bore guide
• Muzzle brake brush

Common Issues & Troubleshooting

Hard Extraction After Firing?

• Re-close and open the bolt quickly — this often clears the casing.
• If stuck, do not use force. Instead, leave the bolt open and use a 3/8" rod through the barrel to safely remove the casing.

Failure to Fire?

• Wait 2 full minutes (in case of a hangfire) before opening the bolt.
• Inspect the round for primer strike — discard damaged ammo safely.

Firing Pin Not Moving Freely?

• Disassemble and clean the bolt.
• If the pin is damaged or does not slide smoothly, do not fire the rifle. Contact us for troubleshooting or replacement.

Safe Ammo Use

Only use new, factory-loaded, commercial .50 BMG ammunition from reputable manufacturers.

❌ Do not use:

• Military surplus ammo
• Reloaded or handloaded rounds
• Wet, corroded, or damaged cartridges

⚠️ Use of reloaded or surplus ammo voids warranty and may cause serious injury or damage.

Storage & Safety Reminders

• Store your Raptor 50 unloaded, with the bolt removed, in a secure location.
• Keep out of reach of children and unauthorized users.
• Always wear eye and ear protection when firing.
• Never fire with bystanders to the side of the muzzle brake.

For detailed safety instructions, visit our Safety Information page.

Warranty Information

Your Raptor 50 comes with a 1-year warranty from the date of purchase against manufacturing defects. The warranty:

• Covers: parts and labor for defects in materials or workmanship.
• Does not cover: damage from modifications, poor maintenance, reloaded ammo, or misuse.

📦 To submit a warranty claim, contact us at [email protected] and include:

• Serial number
• Date and place of purchase
• Description of the issue
• Photos if available

Still Need Help?

📧 Email: [email protected]

📞 Call: (813) 790-7220