Hitchhiker 22

Overview

The Hitchhiker is a highly functional, easy-to-build open-bolt single-shot .22 firearm designed for adventurers and backpackers. This unique, takedown firearm focuses on affordability and ease of use, solving the cumbersome reload process typical in other backpacking rifles. With its clever fire controls and straightforward operation, the Hitchhiker is a lightweight, practical solution for outdoor enthusiasts.

In The Wild

Photos

Videos

Hitchhiker Features

Single-Shot Open-Bolt Operation: The Hitchhiker’s open-bolt design ensures a quick reload cycle, reducing the time between shots. Blowback force re-cocks the bolt, so you only need to insert another cartridge to fire again.

Affordable Build: Designed with a focus on cost-efficiency, this project utilizes both imperial and metric hardware. The mix of components, lovingly referred to as “metrinch,” adds to the fun and versatility of the build.

Customizable Options: Available in three configurations for different barrel lengths—10-inch (pistol), 16-inch (rifle), and the absurd 27-inch “HTRD27” for advanced “iguana warfare” scenarios. Additional options include a special cartridge reserve and a folding grip module.

Operation: Once assembled, the Hitchhiker operates via simple blowback action:

1. Cock the bolt back.
2. Insert a round into the chamber.
3. Pull the trigger to release the bolt and fire. After firing, the blowback action will re-cock the bolt for the next shot. The Hitchhiker is compatible with .22 shorts and long rifles, offering a fun and practical option for low-cost shooting adventures.

Hitchhiker Hardware and Tools

Metric Hardware:

• 4x M3 Nuts
• 3x M3x10 Socket Head Screws
• 1x M3x22 Socket Head Screw
• 2x M4x14 Socket Head Screws
• 1x M3x6 Slotted Alloy Flat-Tip Set Screw
• 1x M3x10 Slotted Alloy Flat-Tip Set Screw

Imperial Hardware:

• 2x ¼-20×1 Socket Head Screws
• 2x 10-24×1” Sex Bolts
• 1x 10-24x½” Sex Bolt
• 1x ¼x1¼” Quick Release Pin
• 1x ¼x1½” Quick Release Pin

Additional Parts:

• Various recoil springs, trigger return springs, and other springs are included for smooth operation.

Tools Required:

• Standard workshop tools like files, sandpaper, screwdrivers, and JB Weld.

Printed Parts

• Bolt’s Tube (A)
• Front Onnion (B)
• Barrel Mount (C)
• Handguard (D)
• Butt’s Cap (E)
• Front Sight Housing (F)

For a full breakdown of printed parts and detailed instructions on how to orient and print, please refer to the assembly instructions. Ensure a print temperature of 215°C, 8 walls, and 100% infill for optimal strength.Hornet DB9 Parts List

Components

• Non-Printed Components: You’ll need some off-the-shelf parts, and here’s where your shopping list comes in handy:
  • AR15 detent spring (recommended over the factory spring for better performance)
  • Trigger bar, return springs, sear, and pins (specific sizes required)

Hitchhiker Build Instructions

The Hitchhiker: Breakdown Backpacker .22 is the ultimate blend of simplicity, portability, and utility. This DIY firearm project is perfect for anyone looking to build a reliable and fun .22-caliber backpacking rifle without breaking the bank.

Polymer 80 Alternative