OX Mainsprings for Airrifles and Pistols bench-rest-bag Inside the S510 its balanced

Inside the S510 its balanced firing valve metres the power

DESCRIPTION This kit contains most things needed to service BSA Lightning / Supersport spring guns

- Max Windage Adj – 73 MOA

functional and practical and boasts a range of features that have quickly proven popular since their launch late last year

- Weight: 498g / 17

OX Mainsprings for Airrifles and Pistols bench-rest-bag Inside the S510 its balancedDescription The World's NO. 1 square spring. The perfect replacement or upgrade for standard mainsprings. Warning replacing your air rifles mainspring may increase its power making it illegal. Redbeck Shooting Supplies would recommend that you seek manufacturers advice or a professional gunsmith before attempting to alter your rifle, and that you always check your rifles power using an accurate chronograph to ensure you stay within the law. NO1 FITS