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AIRSOFTCON 2026 - October 17, 2026

MechLabs ZERO Cap Hop-Up Alignment Base for NEXXUS / X-MOD HPA Engines

ID: 131561 (Part-MechLabs-ZERO-Cap)
ZERO Cap
Tap or click above to open expanded view
Hopup unit may require assembling
MechLabs

$30.00

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Serving enthusiasts for over 25 years
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The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Order Today Receive as soon as Thu Aug. 20

Product Description

Features

  • CNC Aluminum construction
  • Anodized finish
  • Compatible with the MechLabs ROTO, ROTO PRO and MAXXModel M4a, M4i and M4p Hop-Up Chambers
  • This cap allows the ROTO hop unit to screw on directly onto the engine making alignment a non issue
  • Spend less time troubleshooting and more time enjoying your setup
Introducing the new ZERO Cap, designed exclusively for X-MOD and NEXXUS mechanical HPA engines. This upgrade allows the ROTO Hop-Up chamber to connect directly to your X-MOD or NEXXUS, ensuring perfect alignment and eliminating frustrating alignment issues. Spend less time troubleshooting and more time enjoying your setup!

Manufacturer: MechLabs

Important Note: To ensure a perfect air seal and achieve the highest level of shot-to-shot consistency, the nozzle used must be adjustable or have the correct specific length to match the ROTO hop-up system.

Product Specifications

Application: Designed to work with MechLabs NEXXUS and X-MOD HPA Engines / Helps align Roto, Roto Pro, MAXXModel M4a, M4i and M4p Hop-Up Chambers
Material: Aluminum

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MechLabs

About MechLabs

MechLabs specializes in design and manufacturing of high-performance HPA engines for popular Airsoft platforms.