AR-15 Sporter/M-16, .223/5.56 Rifle Service Pak $79.97 Springs to return rifle to original factory condition. All springs are factory specification strength with the exception of the action (or recoil) spring which is extra power. 30452 Only 1 left in stock AR-15 Sporter/M-16, .223/5.56 Rifle Service Pak quantity Add to cart Categories: AR-15, Wolff Gun Springs Related products AR-15 Quad rail handguard – Carbine $99.00 Remington 1100 & 11-87, 12ga. Barrel seal O ring. $7.50