Please advice which lock is better. I was looking to get a Cascade IRS-500-
AK or IRS-600-AK could not really understand the difference. If someone
can tell me why 600 is better that 500 that would be great. I also like
the Fillauer 500 sold by PEL but those are more expensive.
Looking forward to your feedback.
Regards,
Victor Zaporojan
Austin,TX