The MEGA GTR-3H Billet Upper Receiver comes stripped and ready for your next custom AR build. ZEV starts with high-quality 7075 T6 aluminum billet and machines them to exceed mil-spec dimensions and are held within ±.001″ tolerances, giving you maximum compatibility with mil-spec and aftermarket parts and accessories. The MEGA GTR-3H Billet Upper Receiver offers superb strength and versatility for building an AR-15 configured exactly the way you want it.
- Machined from American Made 7075-T651 billet aluminum
- Machined to exceed Mil-Spec requirements, with critical tooling dimensions held within +/- .001”
- True Black Class 2 Type 3 Hard coat anodize
- Compatible with all Mil-Spec parts kits
- M4 feed ramps cut standard