The TechT MRTv2 (MASS REDUCTION TECHNOLOGY) Invert Mini Bolts have been engineered with efficiency and consistency as the most crucial design elements. Our MRT system minimizes excess weight by removing portions of the bolt which are not utilized. Our spiral cut pattern allow us to lengthen the channels of material to be removed, this results produce a very dynamic looking bolt

Our results found that removing the stock-type face o-ring and replacing it with a standard o-ring reduced our velocity at any pressure and dwell by about 15-30 fps and decreased consistency. We think its because the stock type o-ring seals in the barrel very well. We also found that placing a groove between the two rear orings for added weight reduction actually decreased consistency. Instead of a standard deviation of between 3-4 FPS with no groove, we got a standard deviation of about 15 fps with the groove.

	The MRTv2 are our newest bolts that will produced less kick, peak efficiency, and great consistency.The MRTv2 offers deeper cuts for greater weight reduction in bolt the GOLD AND Delrin versions. The MRTv2 GOLD is 30% lighter than stock, and the MRTv2 Delrin is about 60% lighter than stock.

We made two different bolts because we realize that some people would like a metal bolt, while others prefer delrin. Both tested very similar for us, so you really can't go wrong. The metal bolt weighs about 3 grams more than the delrin, however because it's metal it should have a longer wear life. The MRT Gold is hard anodized and teflon coated for minimal drag and friction.