ROLLER +4 NEW, HK CONTRACT

+4 roller new. HK contract production made on HK tooling in an HK licensed facility using correct spec. metric steel.

These are way better, much harder and much more durable than any U.S. made rollers that have been produced. German and HK Contract rollers have a Rockwell hardness of 63-64. U.S. made rollers we have seen have hardness of only 44-48. 

ALL ROLLERS ARE PRICED PER ROLLER! So order two if you want a set.

Fit all HK Bolt Heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme.  Plus Size Rollers increase bolt gap. Minus sized rollers decrease bolt gap.