Kral Arms Mk9 Lancet Regulator Kit (PCP - Internal Installation)

Kral Arms Mk9 Lancet Regulator Kit (PCP - Internal Installation)

Details regarding listing image

Important information about receiving your order, please check the "shipping / delivery" tab below to find out more.

Regarding Air Regulators / Installation

Refer to the "installation" tab below for further details about air regulators and the huge benefits of utilising one.

Inspected before dispatch

Every order is inspected, tested and confirmed to be fully functional and leak free before dispatch.

Kral Arms Mk9 Lancet Regulator Kit (Internal Installation) - by Lane 

To fit Kral Arms branded airguns - see order form for available models / stock status details.

Product summary

With over 20 years of customer feedback, Mr Lane has continued delivering improvements to the design and manufacturing process of his precision airgun regulators. His latest and greatest offering being the Lancet Mk9 - it's the absolute pinnacle of fine tuning!

World-renowned, Lane regulators are manufactured and assembled here in the United Kingdom to which each and every item (where applicable) is tuned and thoroughly tested moments prior to shipping, making certain that each customer is satisfied with their purchase.

Those who are new to airgun tuning: This item really is for big-time shooting enthusiasts who require the very best performance from their PCP airgun set-up.
Most typically our regulators are utilised by competitive target shooters aswell as serious airgun game hunters, though installing a regulator can likewise be a great addition for those who simply prefer a bit of backyard target practice. So whatever your circumstance, our range of regulators can definitely help you get the most out of your airgun's potential regardless of your specific shooting application/s.

The main benefits that can be obtained from installing our Mk9 regulator are as follows:

  1. Flattening out of the distinctive power curve or drop to a near straight line
  2. Increased shot-to-shot consistency which greatly aids in improved and repeatable precision down range (most favoured by FT / competitive target shooters)
  3. Reduced noise or "bark" at the muzzle due to an efficient use of air making for increased stealth at all ranges (particularly useful when hunting large groups of game that are easily spooked by muzzle blast)
  4. On many medium power airguns (12 ft/lb - 16 joule) more time shooting / having fun and less time refilling your airgun between the "sweet spot"

Technical details

The regulator's output pressure is pre-tuned to the specifications you supply us with during the ordering process. Once set, we thoroughly test the regulator moments prior to shipping for reset speed and leaks so customers can rest assure that each and every order is inspected and confirmed to be fully functional and leak free before dispatch.

Our Mk9 Lancet model has many refinements that achieve the absolute best results, these in-turn are a step up from all previous generation Lane regulators (see the comparisons made to its predecessor, the Mk8 below).

Improvements since the Mk8 (2017):

  1. Smaller regulator overall by on average 3.5mm in length
  2. Shorter body case
  3. Shorter piston
  4. Shorter pressure adjuster screw
  5. Improved pressure adjuster screw by having the rear extractor loop built in
  6. Knife edge shut off face shape altered slightly
  7. Piston spring guide slightly tapered to reduce any friction plus an annular groove was added to the piston face so as to make removing the cir-clip easier for servicing
  8. Piston spring guide slightly tapered to reduce any friction
  9. Many models now feature a built in outlet valve standoff spacer
  10. Models with outlet valve standoff are now easier to install due to longer nose on the regulator body
  11. Overall parts manufactured to a tighter tolerance

Remember, all of our Mk9 regulators can be used in both FAC (high power) and non FAC (low power) rated PCP airguns as the working regulator pressure can be fully adjusted.

All of our regulators use a specialised high rate spring which suit 99% of airgun setups (20-155 bar), however we can provide belleville washers as a special request for customers that specify this with their order (as a note during checkout). Belleville washers are otherwise automatically shipped for orders that require a working pressure highers than 155 bar.

Package contents

This is dependent upon the details supplied during the ordering process (make, model, caliber and power of airgun).

Sold as a DIY (install it yourself) regulator kit, this item ships with the following:

  1. Regulator
  2. Standoff
  3. Spare o-ring seals kit
  4. Lubricant
  5. Link to web instruction manuals
    ---and if required for your project---
  6. Drill bits
  7. Outlet valve springs
  8. Packers

Write a review

Note: HTML is not translated!
    Bad           Good

Briefly, what is a regulator?


An airgun / air rifle regulator is nothing more and nothing less than a simple mechanical pressure switch. It does nothing more and nothing less than to simply regulate air pressure upon the low pressure set side to a set pressure. The magic of having a regulator operating in your airgun only happens when,

  1. It is Installed Correctly.
  2. The Outlet Valve / Hammer assembly is fully re-balanced correctly and the gun is used in combination with good pellet section.


This is no mean feet, especially for 10-15 ft/lb air rifles. If you are not mechanically minded or a patient, precise worker then setting about fitting a regulator may not be the project for you.



Users looking for a more in-depth description of what a regulator is and what a regulator does, please view our dedicated what is a regulator page.

Details regarding installation


Customers can view our manuals page for detailed information on what it takes to install one of our precision regulators.
Glance over our FAQs video playlist at our YouTube channel.

Do i need to drill a breathe hole?


The vast majority of after market / branded regulators SHOULD NOT REQUIRE THAT YOU DRILL A BREATHE HOLE, intead simple installation can be made by the removal of the reservoir end seal "so as to let the regulator breathe" (see example Fig. 1 below).


Some makes, models and powers of airgun MUST have a breathe hole drilled into the air reservoir as - It is NOT always possible to design / manufacture a regulator that does not require a breathe hole to be drilled. In othercases it could be possible but then it isn't cost effective for us to produce one.



Fig. 1




Please note: Upon selecting your airgun's model from the "Airgun model" drop down menu box (see example Fig. 2 below) text values followed by two asterisks ** signifies an airgun model that DOES require a breathe hole to be drilled.



Fig. 2

Details regarding listing image


Some products may arrive as a slight variation to the listing image shown, this is based on the specific order details filled out by you the customer during checkout and is also due to continuous product design and developement. As the manufacturer, we reserve the right to alter materials relating to developing, designing, redesigning, modifying, manufacturing or marketing our current or new products.

Details regarding shipping / delivery


We ship all products via Royal Mail UK postal service

  • FREE Worldwide shipping via registered mail / airmail secured is offered on all regulator kits sold.
  • All other accessories / kits are marked as price + shipping charges, orders over the value of £30.00 are automatically shipped by registered mail / airmail secured service.


Speed of processing

  • The majority of orders are processed and shipped in under 24 hours of payment being received, this is subject to a working week day (Monday to Friday) and the working hours / availability of our local post office.


Delivery time frame

  • Delivery to within the United Kingdom is sent out as "2nd Class Tracked" and generally takes 3-4 working days.
  • For customers within Europe we send via "Air Mail Tracking / Signed" which also requires a signature on arrival and generally takes about 6-8 days.
  • Worldwide shipping is sent using "Royal Mail International Tracked / Signed" that can take between 10-18 days - delivery time however is only approximate from our experience.


Delivery FAQs

  • We do not guarantee delivery time as it always depends upon your countries postal service / customs / TAX’s practices etc..



Customers looking for further details, please see our Shipping Information page.

  • Brand: Kral Arms
  • Product Code:
    Lancet Mk9
  • Availability:
    In Stock
  • £76.95

Order form

Secure payments with PayPal Express Checkout

Paying for your order is quick, easy, secure and insured. Please note, customers need not register for a PayPal account if ordering from a desktop or laptop device, simply choose to "Pay by Debit or Credit Card" during the checkout process. PayPal doesn't support mobile format in this way, if you do not want to create a paypal account please make sure to submit your order from a non mobile / tablet device.

Customers can now purchase gift certificates for their special someone

What do customers think about our products?
Why not check our eBay store feedback!

Useful Articles when considering this product
What is a Regulator?

What is a Regulator?

Robert Lane 20/03/2016 0
 What an airgun regulator is and how it works   Firstly The Word "Regulator"  In reference to airguns an air rifle regulator is used in the context of the regulation of air pressure in the Outlet Valv...
Read More