Used surplus mk12 gas block. Gas tube that comes with block needs replaced/removed. You may need to heat the gas block to remove tube. Blocks may have nicss/dings/gouges from removal. Comes with set screws and new roll pin.
| UPC | |
| MFG | MISC MIL CONTRACTOR |
| MODEL | SURPLUS MK12 GAS BLOCK |
| TITLE | SURPLUS MK12 GAS BLOCK |