T-N.T'S cutting edge inner barrels are definitely the best thing in airsoft today.

using state of the art engineering, t-n.t. has designed a new kind of barrel, that will not only improve accuracy, but improve proformance and range by 30-50 percent!

how does it work? 

T-N.T. inner barrels are uniquely designed from tight bore to wide bore.

specially designed grooves will create an air cusion that will guide the bb while shooting out of the barrel eliminating the contact of the bb with the barrel's sides, and then makeing sure that that same air cusion will dispurse out of the barrel before the bb is shot.

this will allow the bb shot from your airsoft gun to be untouched by that air bubble on exit, therefore eliminating the deviation usually created by it.

along with our new age hop up bucking, users will enjoy a new age of airsoft game!

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the mp7 gbb is a very uniquely design airsoft gun. so special and so popular in fact, that we have designed a whole new concept for it!

not only did we design a specific set of inner barrels for the mp7 gbb, with several length options, and added our premium hop up design for mp7, but we've added an outer barrel, which will improve fixation of the inner barrel - and yet again imporve accuracy and range even more.

with this incredible MP7 Retrofit kit you will receive the whole UPGRADED package!

CLICK HERE TO BUY