Resilient RS9. Lightweight, full-auto rated 9mm suppressor designed for blowback-style pistol caliber carbines. Features special design to reduce port pop on blowback actions. Complete 17-4 stainless steel baffle stack. Compatible with SilencerCo Bravo pattern accessories. Note: If this product is reflected as in-stock it means it's either physically in-stock or allocated and available (serial number is assigned) at my distributor