Modify AEG Cylinder Set for M4/M4 RIS[P15E02][02257 / MOD CYL SET M4 / GB-01-52]
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The Modify Cylinder Set for the M4 Series has all the necessary parts to upgrade or replace the cylinder assembly of an M4 gearbox. The Cylinder Set includes a cylinder head, air seal nozzle, aluminum piston head, the cylinder, and a polycarbonate piston. The Modify series of upgrade parts are compatible with most major brands of AEG. You can expect the same level of quality from these parts as Guarder and Systema parts for a fraction of the price.
Stainless Cylinder Head
Air Seal Nozzle with o-ring
Aluminum Ventilation Piston Head
Super Lucid Chromium Plating Cylinder
S303 Stainless Steel / Brass / Polycarbonate / Aluminum / Acetal
- Manufacturer: Modify
- Color: Silver, Black, Purple
- Material: Metal / Polycarbonate
- Package Includes: One (1) Cylinder Set
The cylinder head is high quality stainless steel with good quality double ring rubber seal that fits very tight with the cylinder which provides awesome air sealing.
the cylinder is virtually spotless and dust free internally you can use it right away without cleaning , very high quality.
the piston head is guarder quality black polycarb with clean vented holes. It is solid, tough, reliable and comes with ball bearings for the spring so make sure u tighten the screws very tight or else the spring will spin your bearings and polycarb screw support loose (the little polycarb hat the holds the bearings together with the help of the screw).
the included piston is purple/grape colored polycarb with last tooth being metal. It is guarder quality and durable.
BUT, this kit has one FLAW...The O-Ring for the piston head is TOO SMALL for the cylinder and provides terrible compression. It seems like both the bore up and non bore up echo 1 cylinder sets have O Rings that are too small for the cylinder.
As a side note I am using this set in a stock spring ICS M4 shooting at around 310 fps and so far everything is still brand new after going through 20000 bbs today. With such low stress settings and an 8.4v battery, I think this gun will will last me a million or so shots with this durable kit installed. However, higher ROF and fps settings will obviously cut down gun life down dramatically.
Th kit is great!! Adds alot of compression to your AEG. The Piston Head is not aluminum but polycarb as well as the piston. Very easy to install. New air nozzle seals tightly to the tappet plate as well as the cylinder head. Cylinder is super smooth and precisionly pollished. P-head s none the less ported. The piston has a clear purple color to it, its no very appealing but then again it does not need to be. The piston head o-ring is fine and provides an excellent seal...seriously people its called cylinder lube. BTW I installed this into my custom m733 which preiously was an m16 performed like a champ. Of coarse before doing anything you should shim and lube your gearbox before. Also picked up a ball bearing spring guide. It also has a Madbull M120 installed running on a large 9.6v 4500 batt. Oh and the nozzle which seems to add accuracy....don't know why but its alot better.