It dropped 4ms off my dwell. It helped the cycle rate of my marker that much. I like the bolt so much I have since ordered an additional custom bolt made to my specs. The machining is great, and I really like the reduced link hole size, as this reduces wear on the bolt. The delrin material is nicer to the body of the marker also, which is always a good thing. A nice high flowing wonderful bolt.
And yes it seals just as good as the stock bolt (has Orings), without having any Orings...
Looking for a great upgrade for your RM? Well, look no further start right here! Well worth the $25!
High flow bolt, also the bolt is cupped which might help accuracy.
since the bolt is cupped, it is alittle sharper and could dent/chop balls.
I have been using my BMW bolt fof 2 years now. Before then I owned a GusDaDog delrin bolt. Both performed the same. The BMW bolt is easy to buy since BEOG Super store sells it, and has an online order form. Its the easiest bolt to buy out of all RM bolts For 25 bucks you cant go wrong.
25 bucks is a good deal for this bolt, it helps with the overall performance of the Rainmaker. Check out more reviews of this at http://rainmaker.flipty.com the RMOG.