Product DescriptionThe M&P Accessories Essentials Parts Kit is designed for AR-platform builds and maintenance, providing the small replacement parts that are commonly broken or misplaced during assembly and teardown. This kit includes a selection of springs, detents, pins, and roll pins to help keep your AR operating reliably and to simplify repairs when a small component goes missing.Product Highlights AR-platform essentials kit with commonly lost or damaged small parts for builds and maintenance Includes key AR lower small parts such as detents, detent springs, pins, and roll pins Helps streamline AR assembly, teardown, and field repairs by keeping spares on hand Includes bolt catch, buffer retainer, trigger group, selector, and magazine catch related components Genuine M&P Accessories kit identified by manufacturer part number 1078425Specs Brand: M&P Accessories Product Type: AR-platform essentials / "OOPS" style small parts kit MPN: 1078425 UPC: 661120412687 Included Components: Bolt Catcher Plunger; Bolt Catch Spring; Bolt Catch Roll Pin; Buffer Retainer; Buffer Retainer Spring; Disconnector Spring; Hammer Spring; Trigger Spring; Hammer Pin; Trigger Pin; Pivot Pin Detent; Pivot Pin Detent Spring; Takedown Pin Detent; Takedown Pin Detent Spring; Selector Detent; Selector Detent Spring; Trigger Guard Roll Pin; Magazine Catch Spring Approx. Weight: 0.1 lb (as listed) Approx. Package Dimensions: 5.5 in (L) x 3.6 in (W) x 1.3 in (H) (as listed)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.