Product Description The Strike Industries AR-15 Lower Receiver Spring Gunsmith Kit (ARLRSKPRO) is the essential spring replacement set for anyone building or servicing a stripped AR-15 lower receiver. This carefully assembled 9-piece kit covers all of the critical springs most commonly replaced during a build or easily lost during assembly. Designed for gunsmiths and enthusiasts alike, this kit provides everything needed to complete a lower receiver build without having to source individual springs separately. Trust Strike Industries to deliver quality components that keep your AR-15 running smoothly and reliably. Product Highlights Complete 9-piece spring kit engineered specifically for AR-15 lower receiver builds and repairs Includes springs for the bolt catch, disconnector, buffer retainer, trigger, and hammer Also covers the magazine catch spring, selector spring, and two detent springs for a fully outfitted lower Ideal for gunsmiths and builders working on stripped AR-15 lower receivers to avoid costly delays from missing springs Backed by Strike Industries, a leading manufacturer of AR-15 accessories and firearm components Specs Brand: Strike Industries Manufacturer Part Number (MPN): ARLRSKPRO UPC: 700371179922 Compatible Platform: AR-15 Kit Piece Count: 9 Springs Springs Included: Bolt Catch, Disconnector, Buffer Retainer, Trigger, Hammer, Magazine Catch, Selector, and 2 Detent Springs Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.