Evolution Gun Works Practical Ballester Molina Extractor 70000+ Rounds Blued Finish. Improvements to the entire manufacturing process include better alloys more controlled furnaces vacuum heat treat better tooling and finite element analysis-all of which EGW uses in production.EGW-specific Improvements to the original Ballester Extractor:they found that the extractor rides up the relief groove on the ammunition casing with each round fired: this dulls the hook from constantly banging the case over time tension is lost leading to a jammed case which adversely affects accuracy.they fixed all 3 of these problems by reducing the distance from the bolt face to the extractor hook.they found that most hook designs are cut straight at a right angle. they machined ours at an acute angle so that there is more surface area for the hook to bite into the case. Right angles are a they ak point on other extractors so they put radii on both sides of ours to increase strength. The hook is machined with a special cutter that leaves a nice clean radius in the inside corner where most extractors fail.Lastly Their extractor is vacuum heat treated yielding great spring properties and the capability to maintain tension for 70000+ rounds. they are unable to ship this part internationally. Specifications for Evolution Gun Works Practical Ballester Molina Extractor: Manufacturer: Evolution Gun Works Condition: New Finish: Blued Package Contents: Evolution Gun Works Practical Ballester Molina Extractor Evolution Gun Works 10355: Practical Ballester Molina Extractor 70 000+ Rounds Blued Finish