AR Sponsor
Posted: 6/15/2008 1:25:53 PM EDT
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Which type of BUIS do you have on your AR? I am looking to get one for my M&P and was wondering which one ya'll used and liked. |
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I believe the Troy Ind. Rear BUIS is the lowest. The ARMS #40L would be my second choice. Buying a lower profile flip-up BUIS now just remedies the inevitable later. Eventually you'll want a magnified optic and you'll want a BUIS that doesn't create fitment issues with your glass. |
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Are you going to mount a magnified optic? If so, you need to consider whether the BUIS will fit under the scope and mount combo - some mounts (like the Armalite) are very low, and others (like the M1Sales) are quite high. If it's for a red dot/Eotech style, there's a lot more flexibility. A few things to consider when choosing rear flip-up BUIS, depending on if it's going to be a range gun or a SHTF gun: - Will it be used for precision or long-range shooting? A small aperture is helpful for this. If the use is both close-up and long-range, a dual-aperture sight is useful. - If it's multi-aperture, which one is deployed when it flips? Some flip with the large aperture deployed, others with the small. If you're not in a hurry, this won't matter, but some people care. - If multi-aperture, do the apertures deploy in the same plane? Some deploy with an elevation shift to account for the range differences, others use the same zero for both apertures. - Do you want the windage knob easy to adjust or shielded to prevent accidental adjustments? ARMS are exposed and easy, Troy is shielded. - Does it have elevation adjustments? Some do (like the Wilson Combat), most don't. - How easy is it to deploy or adjust if your hands are muddy or gloved? - Does it latch in the up position, the down position, or both? - How protected is it from damage, both down and deployed? The Matech is one that sticks up with little protection and can easily be tweaked or broken by rough handling when deployed. - How robust is the detent mechanism? The Matech will wear over time and become easier to deploy (and eventually won't lock). For many, this doesn't matter, as their BUIS aren't used often. - How many slots does it cover? This is important if you need to conserve rail space. Figure out which of these are important to you and what capabilities you want, and it will narrow down the choices quite a lot. Here are some popular BUIS heights: ARMS 40 - 0.950" folded (mine is 1.00" even) YHM-9680 - 0.840" folded (mine is 0.850") Matech - 0.75" folded MI ERS - 0.750" folded GG&G MAD - 0.625" folded ARMS 40L - 0.610" folded Troy - 0.460" folded MI MCTAR-SPLP - .4375" folded KAC 300m - 0.315" folded |
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