SKU: 21263058057

Advanced MK3 SUS303 Cylinder (M110) - PTW

Sale price$115.20 Regular price$128.00
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Advanced MK3 SUS303 Cylinder (M110) - PTWThe new MK3. Now available and fully compatible with the Infinity version! New MK3 features: Removable front cap positioning pins for the new Infinity HOP UP unit Enlarged slot for the Infinity gearbox Still compatible with pre 2021 Systema gearbox The MK3. HAOs cylinder version retains all the advantages of the MK1. We have improved the surface of the piston and cylinder inner wall to make it smoother with less resistance. We now use higher quality

The new MK3. Now available and fully compatible with the Infinity version!

 

New MK3 features:

  • Removable front cap positioning pins for the new Infinity HOP UP unit
  • Enlarged slot for the Infinity gearbox
  • Still compatible with pre-2021 Systema gearbox

The MK3. HAO’s cylinder version retains all the advantages of the MK1.

We have improved the surface of the piston and cylinder inner wall to make it smoother with less resistance.

We now use higher-quality ladder gears and NBR rubber components.

 

It was the best, and now it’s even better.

 

 

--------------------------------------------

 

Tired of losing the index screw? Or tired of adjusting the weak and wobbly aluminum extrusion rail inside the cylinder?

Introducing the HAO Advanced PTW Cylinder.

The cylinder that combines HAO’s latest technology in:

 

  • One-piece SUS303 cylinder body with precision wire-cut EDM piston rail.
  • Upgraded polymer-injected piston.
  • SUS303 anti-torsion spring rotation bearing system.
  • Heat-treated S45C wire-cut EDM ladder gear.
  • Upgraded SUS303 nozzle.
  • All NBR rubber parts and O-rings redesigned and reinforced.
  • BCGS (Bolt Carrier Group Sticker) makes your PTW look more like RS.

MPS/FPS Conversion: (calculated with 6mm 0.2g BBs)
M90 = 296.00 FPS = 0.81J
M110 = 361.84 FPS = 1.21J
M130 = 427.63 FPS = 1.69J
M150 = 493.42 FPS = 2.25J

*Notice: BCGS is only compatible with the HAO Advanced PTW Cylinder featuring a pre-milled 0.2mm deep slot for easy insertion/removal without damaging the sticker.


*Notice: Fire the first 500 rounds gently to achieve optimal sealing and performance.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21263058057

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Judy Fletcher
San Leandro, US
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
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Reviewed in the United States on February 16, 2026
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Susan
Port Orchard, US
★★★★★ 4
Stay put!
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
Nice and thin, soft, and stay put. I wear an 8 shoe and don’t like a thick sock taking up room. These socks are a bit tight on big toe. Wish they came in large.
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Reviewed in the United States on October 10, 2023
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Stephanie Robnett
Lowell, US
★★★★★ 5
The best
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
The best no show socks I have found. Stay in place very well and hold up wash after wash. I have tossed all the other brands I’ve bought over the years and stocked up on these as I was tired of digging through the drawer hoping to find a clean pair.
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Reviewed in the United States on December 8, 2024
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Ginni
Houston, US
★★★★★ 5
Love these.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I have them in black and white. I use them everyday in all shoes. These are very versatile and a great quality material. They take a looong time to wear and they stay in place. Very washable and good material. They are not too thick and they do not shrink. I do air dry mine. They do not hold smells even in the summer heat.
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Maria White
Phoenix, US
★★★★★ 5
Perfect!
Number of Items: 3, Color: Pink Quartz Assorted (3-pairs), Size: Medium
My new favorite socks! True to size, fit perfectly, and the best part is they do not slide off your foot! 10/10 recommend!
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Reviewed in the United States on July 10, 2025

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