Stock System V1.9

Stock System V1.9 Features

The Stock System V1.9 stands out with its refined design, focusing on seamless blending with the buffer tower of the new SL-15 and SL-9 lowers. Unlike previous versions with multiple adapters, this release simplifies installation with a single adapter tailored for the latest Hoffman Tactical lowers.

Key highlights include:

• Updated Compatibility: Specifically engineered for V4.x SL-15 and SL-9 lowers, ensuring a snug and reliable fit.
• Fixed Stock Design: Built for stability on mil-spec carbine buffer tubes, offering durability for long-term use.
• Customizable Lengths: Available in several length options to match your preferred setup and shooting style.

This update prioritizes user-friendly integration while maintaining the high standards of Hoffman Tactical’s innovative designs. Future updates are planned to accommodate new lowers like the SL-308, keeping your build future-proof.

Difficulty & Build Time

• Skill Level: Intermediate
• Estimated Build Time: 12-16 hours
• Required Experience: Familiarity with 3D printing firearms components and basic assembly of AR-15 lowers recommended

Hardware and Tools Required

Required Hardware

• Mil-spec carbine buffer tube (compatible with SL-15 and SL-9 lowers)
• Standard AR-15 buffer and spring (not included)
• Fasteners as specified in the build guide PDF

Recommended Tools

• 3D printer with adequate build volume
• Allen keys or screwdrivers for assembly
• Sandpaper or finishing tools for post-processing
• Calipers for precise measurements during fitting

Stock System V1.9 Parts

The Stock System V1.9 package includes STL files for all necessary components of the fixed stock, designed by Hoffman Tactical for optimal performance. These files are accompanied by a detailed build guide, "Stock V1.9 Docs.pdf," accessible via the provided link, which outlines every step of the printing and assembly process. For best results, print with high-strength materials like PETG or ABS to ensure durability under stress.

Special considerations include ensuring proper layer adhesion for structural integrity, as this stock will endure recoil forces. A minimum of 40% infill is suggested, along with at least 4-6 wall layers to reinforce the design. Always refer to the included documentation before printing to avoid errors and ensure compatibility with your setup.

Printer Compatibility & Settings

The Stock System V1.9 is compatible with most FDM 3D printers capable of handling medium to large builds, such as Ender 3, Prusa i3, or similar models with a sufficient build plate. Recommended materials include PETG or ABS for their balance of strength and flexibility, crucial for firearm components. PLA is not advised due to its lower impact resistance.

Optimal print settings include a nozzle temperature of 230-250°C for PETG or ABS, a bed temperature of 80-100°C, and a layer height of 0.2-0.3mm for a balance of detail and speed. Ensure good bed adhesion with a brim or raft if needed, and use supports for overhangs as specified in the build guide. Proper cooling and ventilation are essential when printing with ABS to prevent warping.

Conclusion

The Stock System V1.9 by Hoffman Tactical is a must-have for 3D printing and firearms enthusiasts looking to customize their AR-15 builds with precision and style. Its tailored compatibility with SL-15 and SL-9 lowers, combined with customizable length options, makes it a versatile addition to any project. Download the files today, follow the detailed build guide, and elevate your setup with this innovative stock system.