H&K HK MR556/MR762/416/417/G36/SL8 Complete Gas Piston
New HK German gas piston assembly with three locking piston rings installed. This is a great spare part to have on hand, as the gas piston takes a lot of wear and tear.
Compatible With:
- HK MR556/HK 416
- HK MR762/HK 417 & G28
- HK SL8, SL8-6, SL8-1
- HK G36 full size
