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Zero Compromise Optic (ZCO) ZC420 4-20X50 FFP Illuminated 0.1 MIL MPCT3X  Rifle Scope (+ZCO 2pc Rings) Zero Compromise Optic (ZCO) ZC420 4-20X50 FFP Illuminated 0.1 MIL MPCT3X  Rifle Scope (+ZCO 2pc Rings) Zero Compromise Optic (ZCO) ZC420 4-20X50 FFP Illuminated 0.1 MIL MPCT3X  Rifle Scope (+ZCO 2pc Rings)
Zero Compromise Optic (ZCO) ZC420 4-20X50 FFP Illuminated 0.1 MIL MPCT3X  Rifle Scope (+ZCO 2pc Rings)
ZCO (Zero Compromise Optic)
SKU#400-0214 ZCO (Zero Compromise Optic)

Zero Compromise Optic (ZCO) ZC420 4-20X50 FFP Illuminated MPCT3X 0.1 MIL Rifle Scope w/ Spuhr One Piece Mount

Available soon Notify me when back in stock
Same Day Dispatch on in-stock items before 14:30pm
Product Information FIND OUT MORE

Includes FREE Spuhr Mount - 
(Please Note - Does NOT include Spuhr QDP).

The Zero Compromise Optic ZC420 combines excellent optical performance with unmatched mechanical precision in the best ultra-short design ever developed.
It combines the highest levels of mechanical precision, unmatched optical performance, and extreme durability in a compact package that can compete with much larger riflescopes. This small riflescope with a length of 325mm (12.8 inches) and a weight of only 986g (34.8oz) is ideal for any application where size and maximum performance are paramount.

The low magnification provides a wide field of view for rapid target acquisition while the mechanical system allows for 35 mils of elevation adjustment for the extreme long-range engagements when required.

Never before has so much performance been combined in such an elegant and compact riflescope.


Our optical engineers have set the next standard for clarity, light transmission and resolution in a compact package.

Total light transmission is 92% while maintaining excellent color fidelity matched with best in class resolution for the ultimate viewing experience.

The very best in optical performance results in heightened viewing comfort for all-day use so you can enjoy being behind your scope for extended shooting sessions.

  • Magnification (Objective): 4-20
  • Objective ∅ (mm): 50
  • Main Tube Diameter (mm): 36
  • Click Value (MIL): 0.1
  • Elevation (MIL): 35
  • Elevation (m/100m): 350cm / 100m
  • Elevation lock: YES
  • Windage (MIL): 20
  • Side Adjustment (cm/100m): 200cm / 100m
  • Windage lock: YES
  • Field of View (ft/100yd): 28.0`- 6.0`
  • Field of View (m/100m): 9,3m - 2m / 100m
  • Eye Relief (inches): 3.54
  • Pupil Distance (mm): 90
  • Parallax Compensation (m): 25 - ∞
  • Length (inches): 12.8
  • Length (mm): 325
  • Weight (oz): 34.8
  • Weight (g): 986
  • Illumination: red | green
  • Focal Plane: FIRST
  • Light transmission (%): 92
  • Diopter: -3 | +2
  • Exit Pupil (mm): 10.9 - 2.5



The MPCT3X features an open concept design above the primary horizontal crosshair and a minimally sized dot-style holdover tree below. This design features 0.2 Mil diameter open circles at all whole Mil values making holds easier to identify rapidly and while using the scope at a reduced magnification setting. The tree portion of the reticle utilizes dots arranged in a grid pattern with 0.2 Mil spacing thus allowing greater precision with holding for elevation as well as wind. 


The upper half of the field of view has the vertical crosshair extending up to 4.0 Mils. This maintains an open field of view in the upper half of the reticle while providing enhanced hold-under capability or measurement for calling bullet trace. In practical application with multiple targets at widely varying distances, shooters can now dial their elevation turret for an intermediate range target and then hold under for the closer targets and hold over for the more distant targets. 

Spotting for other shooters is also enhanced with less clutter above the primary horizontal crosshair.

The primary horizontal crosshair features 0.2 Mil references along the bottom edge that provide a visual distinction between the 0.2, 0.4, 0.6, and 0.8 Mil marks making those hold points rapidly identified. We’ve also included a single tick mark along the top edge of the horizontal at every 0.5 Mil location for those shooters preferring to have that value available. 

Additional points: 

  1. The tree is only as large as absolutely necessary to hold for a 308 Winchester shooting the 175 SMK at 2650 ft/sec. under standard atmospheric conditions with a 20-mph full value wind. All other modern cartridges under vastly different atmospheric conditions should easily remain within this grid.
  2. Reference numbers for wind holds are included at 3R and 3L locations indicating a wind hold of that amount. This highly negates counting of dots and circles to locate the correct hold point under stress or time limits. 
  3. The even elevation numbers are located on both left and right sides of the tree making counting much easier. Numbers are reduced in size along the primary vertical down the tree for enhanced visibility and only at the 4, 8, 12, and 14 Mil locations to reduce clutter in the FOV. 
  4. The MPCT3X is the ultimate reticle for speed and highest precision at the same time! It is fully functional across the entire magnification range and features design


  • Zero Compromise Optic (ZCO) ZC420 4-20X50 IR FFP Mil/MIL MPCT3X Rifle Scope 

Manufacturer's Life Time Transferable Warranty

All ZCO products are handcrafted with the utmost care and undergo numerous tests as well as inspections prior to shipment.

In the highly unlikely event that a problem occurs with your ZCO riflescope, we offer a transferable lifetime warranty that covers mechanical and optical defects due to materials or workmanship under normal use for the life of the riflescope.

At our discretion, we will either repair or replace (with a product of the same or similar model) a defective product after prior thorough inspection.

Exceptions to this warranty include intentional misuse or abuse, unauthorized alterations or repairs, modification or destruction of the serial number, improper assembly, negligence in handling the product, and damage by fire, flood, or other natural disaster.

The electronic components built into this product are covered by a limited warranty of 2 years from the date of purchase. This includes defects due to materials or workmanship under normal use.

For ZCO assemblies and ZCO assembly accessories, we offer a warranty period of 90 days from the date of purchase covering mechanical defects due to materials or workmanship under normal use.

At our discretion, we will either repair or replace (with a product of the same or similar model) a defective product after prior thorough inspection.

Sending in the product for repairs

Follow the steps below to ensure timely service:

  1. remove any accessories (sunshades or similar).
  2. write down the serial number of your riflescope and keep it handy for possible inquiries.
  3. Describe the defect and include this document with the scope in the package.
  4. Place the ZCO product in a well-padded box and packed in a shipping carton. Secure your package adequately with tape. The original product box alone is not sufficient for shipping.
  5. return your product insured and with tracking number to the following address:

Zero Compromise Optic GmbH
Rep. Department
Bäckerstraße 1
2433 Margarethen am Moos

Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means. 

Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.



We use DPD , RoyalMail, TNT  and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number.


These are items that we have in-stock and will be sent out for delivery within 1-2 working days. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.


These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.


In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.


If you require any further assistance, please call us on 01803 611 895 or email



  • Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
  • If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
  • The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout.
  • Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
  • Please view the attached slides HERE for further information!
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