My new Sig M400 Tread is a delightful piece of machinery, but it bottoms out my RCBS trigger gauge at 72 oz (4.5 lbs) and even then isn't close to tripping the trigger.

I get it that a self-defense rifle needs to be one that requires a deliberate pull to set it off, but I'd like to try some target shooting at extended ranges and possibly some hunting with it - and a 6-7 lb trigger pull is just too much.

1. Is there a simple way (read: non-gunsmith) to reduce the pull to somewhere around 3.5-4 lbs, like on my other hunting rifles?

2. Is 3.5 lbs too light for its role as a home protection firearm?

I've been looking at trigger spring kits for around $15 and drop-in replacement triggers for $150-300. Is there anything anyone can recommend somewhere near the lower half of that spread?

As you might have guessed from my post, I've never tinkered with an AR-15 before, so any proposed solutions need to be SIMPLE.

Thanks for any responses, and MERRY CHRISTMAS!


All that is necessary for the triumph of evil is that good men do nothing -- Edmund Burke