The washer provide exra thickness onto the buffer stopper if there's any issue fitting cylinder with different type of buffer tube.

HAO's washer for Buffer Stopper - PTW


Term Of Use:
All the products are made and design for Airsoft use. Any modification of structure, exterior, appearance or painting, marking or wiping the cover/instruction on the merchandise may lead to violate your nation's law regulation. Customers shall bear the full legal liability after the modification.