Details
Yippy Mac .350 Legend Upper
The. Yippy. Mac .350 Legend upper delivers a complete, ready-to-install upper assembly built on the AR-15 platform. This configuration pairs a 16-inch 4150 CrMoV barrel with a carbine-length gas system, optimized for the .350 Legend cartridge. The 7075-T6 aluminum receiver and low-profile gas block create a compact, reliable setup suitable for hunting and tactical applications. The 15-inch M-Lok handguard provides mounting flexibility, while the included 5/8x24 flash hider and crush washer complete the muzzle interface.
Key Features
- 16-inch 4150 CrMoV barrel with 1:16 twist rate, phosphate finish, government profile
- 7075-T6 aluminum upper receiver, anodized black
- Carbine-length stainless steel gas tube with low-profile gas block
- 15-inch M-Lok handguard for accessory mounting
- AR-15/AR-10 5/8x24 flash hider with crush washer included
- M4 feed ramp for reliable cartridge feeding
Perfect For
- .350 Legend hunters building compact AR platforms
- Shooters upgrading to a specialized hunting caliber
- Builders seeking a complete upper assembly without additional machining
- Mid-range builds balancing accuracy and practical handling
Compact Hunting Configuration
The .350 Legend caliber was designed for hunting applications where reduced recoil and lower velocity remain effective. This upper's 16-inch barrel and carbine-length gas system create a balanced platform that handles the cartridge efficiently without excessive muzzle blast. The carbine-length configuration keeps the overall package compact while maintaining reliable cycling. This setup suits hunters who want a purpose-built AR platform for medium game without the complexity of larger caliber systems.
M-Lok Accessory Ecosystem
The 15-inch M-Lok handguard integrates with a wide range of tactical and hunting accessories. M-Lok slots run along the handguard length, allowing users to attach lights, lasers, grips, and other components without rail clutter. This modular approach lets builders customize the upper to specific hunting or tactical needs while keeping weight minimal. The low-profile gas block design preserves the top. Picatinny rail for optic mounting.
Barrel and Gas System Reliability
The 4150 CrMoV barrel material provides durability across extended shooting sessions, while the phosphate finish resists corrosion in field conditions. The 1:16 twist rate stabilizes .350 Legend ammunition effectively. Carbine-length gas tuning matches the .350 Legend's pressure curve, ensuring reliable bolt cycling without excessive wear. The low-profile gas block reduces height and sight-line obstruction while maintaining consistent performance.
Muzzle Interface and Included Hardware
The upper ships with a standard AR-15/AR-10 5/8x24 flash hider and one crush washer, allowing immediate mounting of compatible muzzle devices or suppressors. The 5/8x24 thread pitch is standard across AR platforms, making accessory selection straightforward. The crush washer ensures proper timing during installation.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.
