TechT MRT v2 Invert Mini Bolt

The TechT MRT (MASS REDUCTION TECHNOLOGY) Invert Mini Bolts have been engineered with efficiency and consistency as the most crucial design elements. Over the last few months they have tested many different crazy looking super light bolt designs and had mixed results. After long months of testing on the field and shooting over our high precision chrono, they found that using the stock type bolt face oring as well as having no cuts between the two rear orings yielded the best consistency and efficiency.

TechT found that removing the stock-type face o-ring and replacing it with a standard o-ring reduced velocity at any pressure and dwell by about 15-30 fps and decreased consistency. They think its because the stock type o-ring seals in the barrel really well. TechT 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, they got a standard deviation of about 15 fps with the groove. Weird, huh? They hated that their more cut down versions didn't test better....but what can ya do. Invert did a really good job when designing the bolt for this gun.

The MRT v2 are the 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 MRT v2 GOLD is 30% lighter than stock, and the MRT v2 Delrin is about 60% lighter than stock.

There are two different bolts because TechT realizes that some people would like a metal bolt, while others prefer delrin. Both tested very similar for them, 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.

TechT made two different bolts because they 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.