High flowing, low maintenance, super easy to clean, no swelling, no swelling, no swelling, works better than the delrin bolt with my LP conversions.
Had to transfer the plug anchor, return spring, bolt anchor, pull pin spring and pull pin ball bearing from my original bolt to my new one. (hardly a bad thing, but I had to think of something)
When I first got this bolt I was a beta tester for the designer. I was a little weary about this bolt since I was using the first one ever made! The only saving grace is that I've used the other bolts (production models) for my other standard Spyders... AND THEY ROCK!!!
Even though I had a pre-production bolt I only had one problem: The bolt was a milimeter too long in the front (cup face) and if the return spring wasn't fast enough (or I was out shooting my hopper) it would chop hardcore. Once I took the bolt back to the manufacturer, the guy shaved a piece off of my bolt and readjusted the final plans and measurements. I chop NO MORE!!!!
(NOTE: please keep in mind that this is MY bolt. None of the production models have this flaw.)
This bolt is amazing and the FIRST aftermarket bolt for the EM1. Be sure to grab one of the best upgrades for your Emmie!