The Spikes Tactical Lower Parts Kit (LPK) for 5.56/.223 rifles exceeds Military Specifications with superior fit and finish proudly manufactured 100% in the USA. This kit does not include the trigger group/fire control components.Spikes Tactical LPK 5.56/.223 Lower Parts KitExceeds Military Specifications for enhanced qualityIncludes Spikes Pro Grip for improved handlingSuperior fit and finish compared to standard mil-spec parts100% Made in USA constructionDoes not include trigger group or fire control componentsIdeal for builders who want premium quality lower receiver parts and prefer to source their trigger group separately offering flexibility in fire control selection while ensuring top-tier components throughout the rest of the lower assembly.