Description
The Zero Group MFG MK 0 stripped upper receiver is the perfect foundation for the high quality, no frills, workhorse upper build. Starting with American made 7075-t651 forged aluminum the MK 0 upper is Machined to exceed Mil-Spec requirements. MK 0 upper receivers provide the end user with a high strength and versatile platform to build and configure their firearm.
- Machined from American Made 7075-T651 forged aluminum
- Machined to exceed Mil-Spec requirements
- Class 2 Type 3 Hard coat anodize
- M4 Feed Ramps
