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Posted: 10/19/2008 5:14:49 PM EDT
| I'm going to be buying a new BUIS for an AR build i'm finishing up, and I've pretty much decided on the ARMS #40L. I don't really understand the difference, however, between the 40L and the 40L SP. What does same plane aperture mean? Would that be preferable for a rifle or no? I'll be cowitnessing through an Aimpoint. |
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This should answer your question: www.xssights.com/faqs.html#faq4 I put the SP on mine. Shane |
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