Costa Catalyst; Extended Mag Release S&W M&P Pistols

21st Century Gunfighter and Chris Costa (of Costa Ludus) have re-introduced their Costa “Catalyst” Extended Magazine Release for the Smith & Wesson M&P Pistols

These should be useful for defensive, recreational, competitive or professional use

The Costa Catalyst sold out the first day it was released in February.
Look for more information and availability on or

21st Century Gunfighter

Costa “Catalyst”…

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Catalyst: noun, “Cat-a-list”
1: something that initiates a process or causes change with lesser amounts of energy or effort
2: an agent that provokes or speeds significant change or action