Click to expand Tap to zoom E&C M4/M16 Selector Switch Set by E&C Save Liquid error (product-badge line 32): Computation results in '-Infinity'% $11.99 SKU MP066 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This fire selector kit is perfect for players that have faulty or weak parts that need to be replaced. The kit is designed to work with most major brands.