I have both a .25 and .30 caliber DonnyFl Ronin moderators to sell or trade. Sell price is $150 each. Trade one or the other for .25 caliber DonnyFl Koi moderator 1/2x20 end cap in like condition. Descriptions below. -.25 caliber with 1/2x20 female threaded end cap. This one was used on .22...