Greg Hastings is sponsored by Inception Designs and plays with the RETRO Hornet AC and the RETRO Hornet Pump Gun. The RETRO Hornet Pump comes stock with the DRIFT Pump Kit installed.
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It is fully fluted for reduced friction and made of polished stainless steel to make it stiffer and more rigid. The inside is machined to provide extra volume as compared to the stock Empire part. It is slightly shorter than the stock part allowing for a longer smoother pump stroke to reduce the risk of not fully pumping the gun when auto triggering.
These are high quality stainless steel pump arms (the only material you should use for a pump arm to avoid fatigue and breakage at the threads).
This is the mounting block used to install the Drift Pump kits onto your gun body. They all have an anti-rotation step that prevents the front block from rotating in use.The Mini/ER (Extended reach) and Empire Sniper/Empire Resurrection/WGP Karnivorr both have an integrated vertical Air Systems Adapter.