Battle Arms Development BAD-EMMR-L-B Enhanced Magazine Release Large Black Anodized 7075-T6 Aluminum for AR-15, AR-10 $21.95
TacStar 1081159 SideSaddle 6 Shot Shotshell Carrier 12 Gauge Mossberg 500/590 Black Polymer/Aluminum $25.59
Magpul MAG569-BLK Bolt Action Magazine Well 700L Magnum Hunter 700L Magazine Well Polymer Melonite Ambidextrous $75.95
Spikes SED7007 Ejection Port Door Zombie Killer Ejection Port Door AR-15 Engraved Zombie Killer Steel $8.96