Quick view KAK Industry KAK Industry AR-15 LPK Spring Kit, Fits AR-15, Silver AR15-KT-008 $5.00 Product Description KAK manufactured LPK spring kit. These new springs are manufactured by KAK using the best materials. Every spring in the lower receiver is included. Get one for new builds,... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List