Share This Facebook X Threads Bluesky LinkedIn Reddit Pinterest WhatsApp Telegram Instagram Email Copy Link Some links may be affiliate links. If you buy through them, TRB may earn a commission at no extra cost to you.Replacement cartridge stop for Mossberg 500 12ga and 20ga shotguns.Previous guideMossberg 500 Magazine Spring (8-Shot)Next guideBeretta 92/96 Service Pak Share This Facebook X Threads Bluesky LinkedIn Reddit Pinterest WhatsApp Telegram Instagram Email Copy Link Keep learningStart Here →Browse all resources →