Original STG Universal 9mm Bolt with Extractor for STG Universal (STG-U)
(standard-rate system / full round)
For use with:
- All U9s
- U9SF - ITP setups
NiB One™ plating
This is an electroless NIB nickel-boron plating system that is comprised of boron, nickel, and other metals to produce a very hard, wear resistant surface with a low coefficient of friction.