Upgrade spring for SW Kar98k rifles -M140 (460 FPS)

<p>Upgrade spring for bolt action sniper rifles. Made of steel spring wire, blackening surface, thermal tratment. Ends of the spring are grounded in. This spring is suitable for <b>Kar98k</b> sniper rifles. For Snow Wolf and S a T brands. To reach the best sealing results we recommend you to purchase also new rubber o-ring.</p>