Description This washer appears on KM4 diagrams as part 240, and works with bolt 196 and the buffer tube retainer to secure the buffer tube.
Sold Out Quick view KWA KM4 Complete Hop Up Assembly (2,5,15,16,15,162,171,26,243x2) 199-1002-0005S MSRP: Was: Now: $29.99 Out of stock
Sold Out Quick view KWA KM4 Trigger Switch Assembly #58 199-1002-M0058A MSRP: Was: Now: $13.75 Out of stock