Angel Custom Ultimate Upgrade High Performance AEG Cylinder Set - M4A1

$55.00 $40.00

Model: AC-CS-01
Location: U12-130

3 Customer Reviews

by jeffrey v. on 02/10/2014
"this cylinder set is awesome. i put it on my ics cxp 16 sport line and my fps whent from 358 to 410 with an m 100 spring and a MAPLE LEAF BUCKING. i didn't use the nozzle because it doesn't fit in my ics hop up up unit but I tested the compression any way, I wasn't impressed probably because the o ring isn't thick enough to get 100% seal.
by john l. on 01/17/2014
"This is by far the best kit in the market, the cylinder head and piston head gave perfect compression, no air leaking at all. However the nozzle that came with the kit seems to be a bore up nozzle (high-flow) might be shorter than standard m4 nozzles.
by Patar W. on 01/16/2014
"This is by far the best 40$ i have ever spent on an airsoft product. Im a technician and i have worked on a lot of guns and seen a lot of aftermarket parts, and this kit is exceptional. When installed in my custom M4A1 i was shooting 375 FPS with .28g BB's, which translates into around 450 FPS with .2's.

However, in fairness, when i recieved the product one of the orings for the interchangable air nozzles had broke or was cut, i didnt really mind this because i took out the "high flow" valve when i recieved it. I also recommend applying plumbers tape to the cylinder head to create an even better seal. Now, you must use high viscosity Silicone oil to properly lube this, you may be able to get away with any silicone lube, but high viscosity lube makes the difference on the orings.

The cylinder head DOES NOT HAVE SORBOTHANE so i do recommend purchasing some sorbo pads so you can adjust your AOE (Angle of engagement).

Now, as for how quite this is, well, its a ninja.

Now i self shim my gears (i use Bravo standard ratio gears) so that helps make it quite, the gun is super quite with the POM piston head it comes with. I was amazed at how quite it was.

This product is worth it 100%! I would also recommend grabbing a new polycarb piston with full rack of steel teeth (or a full aluminium piston if you are going to pull an m130+)

I recieved one bad oring
Personally, i did not prefer the air nozzle that came with it, i used my old one which was a G&P air nozzle (Newest generation of them)
The cylinder exterior is hard to clean because of the grooves, but does not effect performance.
Does not come with Sorbothane pads

Massive FPS gain
Amazing seal when lubed correctly
beautiful looking!
super quite

Angel Custom Ultimate Upgrade High Performance AEG Cylinder Set - M4A1

"Best compatibility / construction / minimum air loss!"

The Angel Custom High Performance Cylinder Set comes with everything you need to boost compression and air flow in your AEG gearbox. The set includes an Anodized Aluminum Cylinder, Silent Aluminum Piston Head, Double O-Ring Cylinder Head with High Flow Nozzle Guide, High Flow Air Nozzle, and Replaceable Standard Air Nozzle Guide. When combined all of these components can greatly increase performance.
During installation, it is recommended that you always lubricate your cylinder with Angel Custom silicon oil for optimized performance!


  • Improves Compression and Air Flow
  • Can Greatly Improve Performance Over OEM Components
  • Anodized Aircraft Grade Aluminum Ported Cylinder
  • Silent Aluminum Piston Head
  • High Flow Air Nozzle
  • Double O-Ring Cylinder Head with Swappable Nozzle Guide (Includes High Flow and Standard Air Nozzle Guides)
Compatibility: For Tokyo Marui, G&P, Matrix and other compatible M4A1 Series Airsoft AEG Rifles
Recommended Barrel Length: 350mm-390mm
Material: Aircraft Grade Aluminum, Stainless Steel

Manufacturer: Angel Custom

This product was added to our catalog on Tuesday 29 October, 2013.

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