| Image | Name | Summary | Price | Buy |
|---|---|---|---|---|
 | CATCH,COMPL., HK416/MR556 | CATCH,COMPL., HK416/MR556 | $46.99 | |
 | CLAMPING SLEEVE, HK416 | CLAMPING SLEEVE, HK416 | $5.99 | |
 | MR556A1 GAS PISTON | MR556A1 GAS PISTON | $70.99 | |
 | SELECTOR LEVER, AUTO, HK416 | SELECTOR LEVER, AUTO, HK416 | $39.99 | |
 | SPRING, MAGAZINE CATCH, HK416/MR | SPRING, MAGAZINE CATCH, HK416/MR | $5.99 |
