It's all a matter of risk v. benefit... for me it looks like this:
RISK: A non-standard, non-milspec part DESIGNED to disable my weapon could engage without me wanting it to.
BENEFIT: It could allow me to disable the weapon without putting it in a safe, thereby making it "safer" to leave unattended in an area with small children. Since my youngest brother is 18, and I'm single and required by my contract to stay that way for the next few years, this benefit is basically non-existant.
Disclaimer: I'm a fan of the "locked up or strapped on" school of thought on weapons in the house to begin with.