You've seen Ernest Rowe developing and producing it, and now it is available for sale! Well, only for pre-order at this moment 😉
Easy installation on .25 and .30 calibers, might block the moderator on .177, .22 or .25 compact calibers. The DonnyFL Tanto will still fiti the airtube juts past the end of the barrel.
Expected arrival is 3-4 weeks.