DIY AR15 Upper Assembly: A Step-by-Step Guide for Beginners

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Bootleg AR-15 Upper Receiver | Bootleg Inc

Embarking on a DIY AR-15 upper assembly can be a rewarding and educational experience for firearm enthusiasts, especially beginners looking to delve into the intricacies of this iconic platform. This step-by-step guide aims to assist newcomers in crafting their AR15 Upper with confidence.

1. Gather Your Tools and Components: Begin by assembling all the necessary tools and components. This includes the AR-15 upper receiver, barrel, handguard, gas system components, bolt carrier group (BCG), charging handle, muzzle device, and any additional accessories.

2. Ensure Safety: Before starting the assembly, prioritize safety. Ensure that your firearm workspace is clean, well-lit, and free from distractions. Always follow proper safety protocols and wear appropriate protective gear.

3. Install the Barrel: Begin by attaching the barrel to the upper receiver. Ensure that the barrel’s extension aligns correctly with the receiver’s barrel extension. Tighten the barrel nut to the recommended torque specifications.

4. Install the Gas System: Attach the gas block and gas tube to the barrel. Proper alignment is crucial for the gas system to function correctly. Secure the components with set screws and pins.

5. Attach the Handguard: Install the handguard onto the barrel and secure it to the upper receiver. The handguard provides a mounting platform for accessories and protects your hands from the heat generated during firing.

6. Install the Bolt Carrier Group (BCG): Slide the BCG into the upper receiver, ensuring that the gas key aligns with the gas tube. Confirm that the bolt rotates smoothly within the bolt carrier.

7. Add the Charging Handle: Insert the charging handle into the upper receiver and secure it in place. The charging handle allows you to cycle the action manually.

8. Mount the Muzzle Device: Attach the muzzle device to the barrel, ensuring it is properly aligned. Tighten the device according to the manufacturer’s specifications.

9. Final Checks: Conduct a thorough inspection of all components to ensure they are securely attached. Check for any loose fittings or misalignments.

By following this step-by-step guide, beginners can successfully assemble their AR-15 upper, gaining valuable insights into the firearm’s mechanics. The DIY approach not only fosters a deeper understanding of the AR15 platform but also provides the satisfaction of crafting a personalized and functional firearm.

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