3100.00 HK SL8 - G36 Hera Arms Conversion London Jun 3, 2024 - 6:58 AM Zack F Selling my HK conversion from SL8 to G36 using the gen 2 Hera Arms BCK kit. Ambi controls expect mag release on left side. Has had roughly 2000 rounds through it and that was all mainly early last year. Was tough to source the parts.