Description Supermagnum Stinger Kill Spring™ Deluxe – New in 2018, the biggest of the Senneker line of Kill Springs. Use this spring as you would a Magnum spring with the trigger in the 9’oclock position on the spring eyelet. Deluxe springs are made of an ultra-high quality spring wire for strength and added elasticity. Our Super Magnum Stinger Kill Springs are sold in packages of 12.   Also available to order in package of 100.