Spikes Tactical With Trigger Enhanced Lower Parts Kit - If you're looking for the highest quality and most durable Lower Parts Kit on the market with all of the upgrades, look no further. The Spike's Tactical Enhanced LPK was designed for the end user who demands the most longevity possible out of the parts in their rifles. Proudly made here in the USA. Battle Trigger Group (Nickel Boron Coated) Billet Tool-Less Trigger Guard Black Ergo Grip Black KNS Anti Rotation Gen 2 Mod 2 Ambidextrous Safety Bolt Catch, Spring, Roll Pin, And Plunger Magazine Catch, Spring And Button Front Pivot And Rear Takedown Pin With Detent And Springs Buffer Retainer Spring And Plunger Grip Screw And Star Washer