Description:

Buy Harlet Parts Kit Online

The Harlet Parts Kit stands out as one of the most accessible ways for firearms enthusiasts and DIY builders to explore 3D-print firearm technology. Engineer for compatibility with the .22 LR single-shot Harlot derringer, this kit supplies the precision metal parts require for a functional build, leaving the polymer frame, grip, and aesthetic design elements to be 3D-print by the user. Its thoughtful assortment of hardware ensures reliability, safety, and proper mechanical function without requiring advance machining.

The kit’s highlight is its rifled steel barrel liner, which provides accuracy and durability comparable to conventional firearms. Complementing this are precision-engineer compression springs that drive the break-action mechanism and firing pin system, delivering smooth operation in such a compact design. The screws and nuts are standard metric sizes (M3), making assembly straightforward, while leaving room for user customization, such as grip styling or frame reinforcement.

One key advantage of the Harlot platform is modularity. Users can choose from various frame iterations, including the original Harlot, Harlot v2, and the recently popularize Harlot XL. Many kits also offer optional zinc or steel weights, helping meet the weight threshold mandate by the 1988 Undetectable Firearms Act, ensuring both legality and balance.

Order Harlet Parts Kit Online

For hobbyists, the kit provides a unique educational opportunity, illustrating core firearm principles like breech design, hammer action, and barrel rifling, all within a simple, single-shot pistol. It also caters to collectors seeking compact derringer-style builds or makers experimenting with finishes, custom grips, and ergonomics.

While the kit itself contains no serialize components, responsible ownership is essential. Builders must comply with local firearm regulations, employ safe printing practices, and inspect all parts before use. Overall, the Harlot Parts Kit offers a complete, cost-effective gateway to the world of 3D-print firearms, combining classic derringer appeal with modern maker innovation.

Note:

• Under the 1988 Undetectable Firearms Act, this build requires 3.7oz of stainless steel (not included) to be placed into the printed spacer before assembly is complete.

What’s included:

• USB w/ Files (requires printing)
• .22LR Barrel (pre-drilled chamber)
  • .305″ Outer Diameter (OD), 6 groove, 1/16 twist, 37mm in length.
• 8x M3x20mm Button Head Screws
• 6x M3 nuts
• Gun Spring
  • 10mm Outer Diameter (OD) x 1mm wire x 50mm
• Compression Spring (latch system)
• M3 Hex Key