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 completed.
What’s included:
- USB w/ Files (requires printing)
- .22LR Barrel (pre-drilled chamber)
- .305″ Outer Diameter (OD), 6 groove, 1/16 twist, 76mm in length
- 8x M3x20mm Button Head Screws
- 6x M3 nuts
- Acetal Rod
- Gun Spring
- 10mm Outer Diameter (OD) x 1mm wire x 50mm
- Compression Spring (latch system)
- M3 Hex Key


KAK 16″ 5.56 Mid Gas Fluted AR15 Barrel- Stainless
Space Gat .22 – USB
Universal Clamps
The Harlet (Harlot v3) Parts Kit
Collet 4mm
Mastering Fusion 360: 28 Step-By-Step Projects for Beginners in 3D Printing, Prototyping, and Making 






