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Ox Original Main Spring Airgun Spring Air Rifle Mainspring - Red No.1 - No. 7

£24.99 GBP
Tax included Shipping calculated at checkout.

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The world-famous OX Accelerator furnace bake-coated with Molybdenum & PTFE for Progressive Lubrication and rapid Acceleration. With up to 40% more compressed poundage than conventional mainsprings.

 Please Note: Installation of springs into air rifles sometimes requires the removal of coils by grinding and/or cutting the spring. This is normal and before purchasing and fitting should be taken into consideration

We are unable to accept any returns with opened packaging, or modified/damaged springs

Removal and fitment of an airgun spring can be dangerous as they can be under considerable preload. If in doubt do not attempt the repair consult a qualified gunsmith.

Please note that there are many factors involved in finding the right size replacement spring for your rifle. Even if listed sometimes the particular setup of a rifle will result in a different size being required. It is important to replace your existing spring with a similar-sized spring. Our spring size chart is shown below to assist with this.

Size Chart for Ox Original Mainspring Airgun Spring Airrifle Mainspring Red

(NB manufacturing tolerances may produce up to a +/-2% size difference)

 Model No.1  OD = 21  ID = 14.20  Wire = 3.19  Coils= 39  Length - 280

Model No.2  OD = 19.20  ID = 12.78  Wire = 3.26  Coils= 34  Length - 240

Model No.3  OD = 20.41  ID = 13.78  Wire = 3.10  Coils= 31.5  Length - 235

Model No.4  OD = 22.75  ID = 14.40  Wire = 3.80  Coils= 26.5  Length - 235

Model No.5  OD = 23.50  ID = 15.80  Wire = 3.54  Coils= 31.5  Length - 265

Model No.6  OD = 20.45  ID = 13.55  Wire = 3.02  Coils= 38  Length - 310

Model No.7  OD = 20.40  ID = 13.80  Wire = 3.15  Coils= 31.5  Length - 235


Compatibility list:

No.1 fits BSA Lightning Airsporter, Mercury, Supersport, Superstar, Goldstar, Anschutz 335, Original 35, 45, 50, 38 RWS. 24, 27, 34, 45, 50, Relum, Air Arms (all models), HW85, HW55, HW50, Haenel, Lion, ASI CF 16/20, Webley Mk3 (if the spring guide is reduced by 20 thou), HW95, HW98, HW99.

No.2 fits BSA Meteor, Milbro Diana G80 and 27, Norica, Baikal, Cometa 300/400 plus 5, 50, 100, 220 with coils removed, most SMK models.

No.3 fits BSA Superstar (12 ft-pounds only), Webley (All models except Eclipse and Mk3), and Remmington Express.

No.4 fits HW35, Diana Original RWS 52, 48, 54

No.5 fits HW80, Webley Eclipse

No.6 fits HW77, HW97, Feinwerkbau Sport, and also larger original models if ultimate power is required.

​​No.7 fits ASI Sniper, Magnum (and all other ASI models

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    Ox Original Main Spring Airgun Spring Air Rifle Mainspring - Red No.1 - No. 7

    £24.99 GBP

    The world-famous OX Accelerator furnace bake-coated with Molybdenum & PTFE for Progressive Lubrication and rapid Acceleration. With up to 40% more compressed poundage than conventional mainsprings.

     Please Note: Installation of springs into air rifles sometimes requires the removal of coils by grinding and/or cutting the spring. This is normal and before purchasing and fitting should be taken into consideration

    We are unable to accept any returns with opened packaging, or modified/damaged springs

    Removal and fitment of an airgun spring can be dangerous as they can be under considerable preload. If in doubt do not attempt the repair consult a qualified gunsmith.

    Please note that there are many factors involved in finding the right size replacement spring for your rifle. Even if listed sometimes the particular setup of a rifle will result in a different size being required. It is important to replace your existing spring with a similar-sized spring. Our spring size chart is shown below to assist with this.

    Size Chart for Ox Original Mainspring Airgun Spring Airrifle Mainspring Red

    (NB manufacturing tolerances may produce up to a +/-2% size difference)

     Model No.1  OD = 21  ID = 14.20  Wire = 3.19  Coils= 39  Length - 280

    Model No.2  OD = 19.20  ID = 12.78  Wire = 3.26  Coils= 34  Length - 240

    Model No.3  OD = 20.41  ID = 13.78  Wire = 3.10  Coils= 31.5  Length - 235

    Model No.4  OD = 22.75  ID = 14.40  Wire = 3.80  Coils= 26.5  Length - 235

    Model No.5  OD = 23.50  ID = 15.80  Wire = 3.54  Coils= 31.5  Length - 265

    Model No.6  OD = 20.45  ID = 13.55  Wire = 3.02  Coils= 38  Length - 310

    Model No.7  OD = 20.40  ID = 13.80  Wire = 3.15  Coils= 31.5  Length - 235


    Compatibility list:

    No.1 fits BSA Lightning Airsporter, Mercury, Supersport, Superstar, Goldstar, Anschutz 335, Original 35, 45, 50, 38 RWS. 24, 27, 34, 45, 50, Relum, Air Arms (all models), HW85, HW55, HW50, Haenel, Lion, ASI CF 16/20, Webley Mk3 (if the spring guide is reduced by 20 thou), HW95, HW98, HW99.

    No.2 fits BSA Meteor, Milbro Diana G80 and 27, Norica, Baikal, Cometa 300/400 plus 5, 50, 100, 220 with coils removed, most SMK models.

    No.3 fits BSA Superstar (12 ft-pounds only), Webley (All models except Eclipse and Mk3), and Remmington Express.

    No.4 fits HW35, Diana Original RWS 52, 48, 54

    No.5 fits HW80, Webley Eclipse

    No.6 fits HW77, HW97, Feinwerkbau Sport, and also larger original models if ultimate power is required.

    ​​No.7 fits ASI Sniper, Magnum (and all other ASI models

    Size

    • No.1
    • No.2
    • No.3
    • No.4
    • No.5
    • No.6
    • No.7
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