I'm trying to locate front and rear sights for my rifle. I found a set for a very high price...said to be from a l61r. The rear measurement matches but the front doesnt. My front holes ctw are abou .706 inch...the site is about 1.216 or 30 mm. I've seen elsewhere 30 mm to be a front measurement. I have not purchased these because the price mostly, but also the front sight doesnt match, so it's not worth it... Any input from others on measurements or leads to peices?