If you look at the Fitting Information page on this site you will be able to check our list of rifles detailing the appropriate spring that will be suitable. Please also duble check the size of spring on our size chart just to make sure it is the correct replacement as thy will not always match.

If after checking the Fitting List you cannot find your rifle make and model you will need to measure your existing spring. Please bear in mind your existing spring will probably be a little shorter compared to the nearest replacement due to the compresion it has been under. You want the nearest match that will fit and possibly you will need to make adjustments to it.

OD = Outside Diameter of the spring.

ID = Inside Diameter of the spring hole.

OX Mainspring® are numbered in relation to the different spring sizes (seen on our size chart in the Fitting Information). The numbers do not relate to power levels.

Yes and in fact all replacement mainsprings will probably need some adjustment to fit your rifle. There are various videos on YouTube showing how to do this or alternatively we do sell a book taking you through the process in good detail with pictures. Alternatively you can pay a Gunsmith to fit the spring for you. If you do fit the spring yourself please check that your rifle is firing at your local legal limits by using a chronograph.

The Red Original OX Mainspring® is our standard spring which will require suitable lubricant when fitting (see OX Lube in shop). The Yellow Accelerator OX Mainspring® are specially furnace baked with a Molybdenum & PFTE coating (much like a teflon coating on a frying pan) for progressive lubrication and rapid accelleration whilst firing. This therefore reduces the probability of dieseling in your rifle which can occur with too much lubrication.

We are proud that all of our OX Mainspring® have always been

manufactured in Great Britain.

OX Mainspring® are the most powerful air rifle replacement spring available. This is achieved through our patent pending square section wire which produces up to 40% more power than conventional springs. When fitted correctly and tuned to your secific rifle you should not encounter any issues. The power of our springs allows for you to 'Shoot Stronger for Longer'

Yes. When ordering from this site you can select the destination from the drop down menu. When proceeding to the check out you will be charged in your local currency following converison by our banking facilitator. To review our prices in your own currency to begin with just change the currency at the top right hand corner of the website.