Description
HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo
Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble.
Compatible With:
- HK93, HK33, & HK53 Style Builds
- 300 Blackout HK Roller Lock Builds
- Other Custom Builds & Clones
Please click here for receiver folding instructions.
***This US made receiver flat counts as one required 922r compliant part***
