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Posted: 12/11/2005 1:23:46 PM EDT
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I just assembled and fired my M4 this weekend (with no charging handle no less!) but there is still something that irks me and seems not quite right. The LaRue 7.0 doesn't seem to be perfectly lined up with the top rail of the upper reciever. I only have an EOTech sight right now and I can't get it to span the gap. I initially thought it was because the ring that holds the rails on was too large for the sight but when I got home I noticed that if I sat the nose of the EOTech on the ring, the LT top rail was off center from the battery lever. The lever that holds in the batteries is aluminum and integrated with the base of the sight so I think it should be dead center. Am I right in thinking that I should be able to span the gap with an EOTech? Also, when I take everything out of the carrier, I shouldn't be able to hear it contact the gas tube at all right? Here's my upper parts list: Colt M4 upper Colt 14.5" barrel LaRue 7.0 FF tube Standard gas tube and FSP |
The farther out you push the Eotech, the better your field of view, and mroe effective the hologram becomes. Having it against your BUIS is about the worst way. |
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I wouldn't bet on the battery lever on your EOTech being dead center. The important thing is that the rail of your upper and top rail of the LaRue 7.0 are aligned properly. That is ultimately accomplished by the alignment of the barrel nut. I have an Aimpoint on one of my set ups and an ACOG on the other so I can't speak to the EOTech but it looks to me like there isn't the clearance to span the two. The diameter of the LaRue retaining ring is quite large and looks like it sits well above the rail groove which would contact the bottom of your EOThingy. MadDog 
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trial and error. install bbl. nut and then the rail tightning by hand the locking ring then see if it lines up if not remove the rail and give the bbl. nut a little bump with the bbl wrench then reassemble and place against flat edge again. if you are looking down the muzzle and it looks as though the rail needs to go more clockwise then keep bumping the bbl. nut if it needs to go the other way loosen bbl. nut and start over. the eotech mount i have no idea what it fits since i do not own either eotech or eotech mount. |
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