Description
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.
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