WTS: HK 416 10.4" Upper Conversion Kit*-screenshot_2019-09-13-heckler-koch-hk-416-10-4.png

HK 416 10.4" Upper Conversion Kit - $2,649.99
https://www.gatewoodsupplyco.com/HK-...t-_p_1568.html

Gatewood Supply Company
https://www.gatewoodsupplyco.com