Click to expand Tap to zoom Action Army AAP-01/C Output Valve by Action Army Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $19.99 SKU U01-020-A CO2 - $19.99 Green Gas - $19.99 CO2 Green Gas MODEL 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart A replacement outlet / knocker valve for the Action Army AAP-01/C pistols.