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Matrix Match Grade M4 / M16 Airsoft AEG Gearbox Reinforced Full Tune Up Kit
[FTK-MTX-01]
$80.00 $60.00
by Sergey K. Date Added: Thursday 07 February, 2013
Overall, a good kit. Parts are made of steel, not aluminum, and do appear to be m120 capable.

Just installed them yesterday. Most parts that came in the set are of very good quality and workmanship, with additional seals to increase compression. They obviously were much better than the original ones I had in my gun. It sounds as if this kit may generate up to 130-135 possibly, will have to check.

During installation, we found out that the cylinder that comes with the kit is quite superficially polished on the inside, which doesn't produce decent pressure. Had to use a well-polished native cylinder and it gave an amazing compression.

The set doesn't come with shims (are a must) and there are no bushing bearings either. Need to have those just in case the original ones are not good enough. Grease that comes with the set is not really good either, and the amounts are small, so get more for both piston and the gears.

If you get all of the things on top of the kit, you'd be all set. Still a steal at $60, and with a bit of extra money would give you a very good tune-up kit. Would not give it a 5 star, but is definitely a a 4-star.

Rating: 4 of 5 Stars! [4 of 5 Stars!]
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