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Showing results for tags 'size'.
Found 2 results
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Just got my first AR! Bushmaster Carbon 15. http://www.budsgunshop.com/catalog/product_info.php/products_id/80172 So now I have a question... I want to replace the stock gas block with a quad-railed one, so I can attach a flip down front sight, and a couple other accessories. Everywhere I go, it says the only way I can be sure of the size I need is to remove the current gas block and measure the hole. Is there any other way? I'd really rather order the gas block, and put it on when it arrives, only taking it apart once. And to be honest, I'm not all that confident I could accurately measure the hole. Any advice would be greatly appreciated! Also, I feel I have to say this since you can't tell from the picture, that's a PERMANENTLY PINNED 15 round mag, NOT a hi-cap 30 round mag! Purchased from RifleGear.com!!!
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I am starting to research binoculars to make a purchase. I understand that the more compact binoculars use a roof prism design. I'll be shopping for a pair to carry with me for medium distances and for the bug out bag, and also pair for longer range surveillance, say 1,000 - 2,000 yards. I'd like them to be waterproof and fogproof. I am trying to determine what size to get, 8x42, 10x42, 12x42, 7x50, 10x50, etc. and keep the price below $200. From what I've read so far, to be functional in most lighting conditions including low light and twilight, the exit pupil diameter of the binocular needs to be around 5 (for example, an “8x42” has a 5.25mm exit pupil because 42/8=5.25) and your eye pupil diameter should be smaller than that to be comfortable using in those lighting conditions. Another consideration, is that if you're using the binoculars from an unsteady observation point (such as a boat), you will need a model with an exit pupil diameter greater than your pupil’s diameter while in use. This compensates for the erratic movement of your pupil relative to the exit pupil of the binocular, and explains why boating binoculars have such large objectives despite often being used in favorably bright lighting conditions. So, can I get your suggestions on brand, size and why you may have chosen the ones you have?
