DonnyFL RYU Quick Release 22 Silencer - .22 Calibre 1/2x20Unf brand_-Richter 5 is a replacement mainspring

5 is a replacement mainspring for spring-piston air rifles

Original is classic five-pocket detailing

Fabric: 35% Cotton & 65% Polyester

This version is sized for

DonnyFL RYU Quick Release 22 Silencer - .22 Calibre 1/2x20Unf brand_-Richter 5 is a replacement mainspringDonnyFL build airgun moderators with a following among PCP shooters the brand's whole premise is making a high powered air rifle quiet enough to shoot without annoying the neighbours. DonnyFL RYU Quick Release 22 Silencer . 22 Calibre 1 2x20Unf. DonnyFL moderators and adaptors are thread and calibre specific, so check the thread on your barrel and the calibre you shoot before ordering our shops can confirm the right combination if you are unsure.