Tippmann Arms M4-22 - Parts Kit /h2> The M4-22 Parts kit has all the parts you need. Even though the M4-22 comes standard with a Limited Lifetime Warranty we know it's important to have parts on-hand. Compatible only with the Tippmann Arms M4-22. Kit Includes: 1 Firing Pin - P/N AF01330 1 Firing Pin Spring - P/N AF01331 1 Extractor - P/N AF01322 1 Extractor Pin - P/N AF01323 1 Extractor Spring - P/N AF01324 1 Pin Detent - P/N AF01029 1 Detent/Safety Spring - P/N AF01128 1 Safety Detent Pin - P/N AF01327 1 Safety Detent Spring Cap Pin - P/N AF01326 1 Ejector - P/N AF01321 1 Trigger/Hammer Pivot Pin - P/N AF01314