Basic Level 0 - 325 to 400 fps - $65

The "Basic Upgrade", bushings and a spring. The gun's plastic bushings are replaced with metal bushings and the gears are finely shimmed. Everything is cleaned and regreased. The stock spring is replaced with a stronger one.

With this upgrade, you can specify what kind of velocity you are looking for and we will install a spring accordingly. Higher velocity springs will decrease your rate of fire and decrease the durability of the gearbox.

For Tokyo Marui guns with a stock gear set, 350 fps is a good balance of reliability and performance. 400 fps is about the limit and the lifespan is of the gearset is dramatically decreased.

Basic Level 1 - 325 to 400 fps - $120

This upgrade includes, metal bushings, a stronger spring, and a reinforced gear set.

Basic High Speed - 300 to 350 fps - $125

This upgrade includes, bearing bushings, a stronger spring, and a high speed bearing related gear set.

Basic Level 2 - 325 to 425 fps - $180

This upgrade includes, metal bushings, a stronger spring, polycarbonate piston, modified piston head, and a reinforced gear set.

Basic Level 3 - 375 to 450 fps - $190

This upgrade includes, metal bushings, a stronger spring, polycarbonate piston, piston head, spring guide, and a reinforced gear set.

The parts used for a Bulletproof upgrade vary between applications, but in general include: Upgrade spring, steel bushings, high grade steel helical gearset, and reinforced piston. Items such as EG1000 motor are also to be installed where required either at the time of upgrade, or at the scheduled maintenance.

Performance 1 - 350 fps - $300

A rock solid upgrade for those seeking 350 fps.

Performance 2 - 400 fps - $325

Bullet Proof 400fps. Most fields limit their velocity to 400 fps, and this upgrade will get the most out of your gun while still being field legal. With a long gun and tightbore barrel, you can put a burst on a man sized target at about 180 to 200 feet.

Performance 3 - 450 fps - $375

Switches to the next to highest rated helical gearset.

Performance 4 - 500 fps - $395

When used in combination with a tightbore barrel in a gun like a TM M14, you can expect accurate fire at ranges of 200+ feet. (Piece of paper size.)

Performance 5 - 600 fps - $450

The Performance 5 upgrade is limited to the TM PSG Rifle. The larger cylinder is required for the high velocity. We can put a bigger spring in anything, but the reliability suffers.