Description
MKE -4 Roller for Bolt Head 7.96mm – Under-sized
The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling.
Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head.
An easy way to remember the size you need to order – plus-size rollers increase the bolt gap and minus-sized rollers decrease the bolt gap.
Compatible With:
- HK G3, 91 & PTR
- HK 93, 33, 53
- HK MP5, 94
- HK MP5K, SP89, SP5K
- Other 90 series custom builds or clones









