Home / Rifle / Heckler and Koch (HK USA) MR556 5.56 16.5″ 10+1 M-LOK Sale! Heckler and Koch (HK USA) MR556 5.56 16.5″ 10+1 M-LOK$3,49900 Original price was: $3,49900.$3,18478Current price is: $3,18478. Only 2 left in stock Heckler and Koch (HK USA) MR556 5.56 16.5" 10+1 M-LOK quantity Add to cart SKU: 81000580 Category: Rifle Product ID: 39533 Description Description M-LOK Handguard Related products Christensen Arms MESA LR 6.5CR TUNG/BLK 26″ $1,64999 Sale! Savage Arms 110 APEX HNT XP 6.5X284 24″PKG $72900 Original price was: $72900.$67749Current price is: $67749. Sale! Mossberg PATRIOT 300WIN BL/SYN 24″ TB $49980 Original price was: $49980.$42929Current price is: $42929. Sale! Savage Arms 110 APEX HUNT XP 260REM 24″PKG $72900 Original price was: $72900.$67749Current price is: $67749.