GC_UPC Sig Sauer, Inc. Mcx-Spear Lt Ar Conversion Kit 7.62x39mm - Mcx-Spear Lt Ar Conversion Kit 7.62x39mm 16" Black $1,699.00 UAMCX-762R-16B- show more like this additional Brownells GC_UPC Mcx-spear Lt Ar Conversion Kit 7.62x39mm 16'' Black $1,763.92 UAMCX-762R-16B- show more like this Tactical Surplus USA GC_UPC Mcx-Spear LT AR Conversion Kit 7.62X39mm 430106241 $1,886.54 UAMCX-762R-16B-LT-BLK show more like this Firearms $18.45, Free over $500 Shooting Surplus