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Posted: 6/16/2009 1:13:44 PM EST
I am considering the LaRue mount (or GG&G), but have a few questions for which I can find answers elsewhere. The unit I am looking at is the LaRue Tactical SPR / M4 Scope Mount QD LT-104.

1) What is the height of the scope centerline above the AR15 flat top rail? I am using a 30mm scope tube. I am looking for something between 1.3" and 1.4", no higher.

2) Does the mount need lapping to prevent (or reduce) scope ring marring and assure proper scope seating? I would use the Kokopelli Products kit for this, if needed.

3) Will this mount fit an AR10. I presume so, but asking in case there is a problem. The mount will also go on multiple AR15s.

- Phil
Link Posted: 6/16/2009 1:31:13 PM EST
1) 1.5", but the LT-158 might be a better option for you.
Link Posted: 6/16/2009 3:19:25 PM EST
2) I have the (2) LT-158's and I did not lap either of them. I have not had any problems. If you wanted to lap I don't think it would hurt, but I don't think it is required.

3) I don't see why it wouldn't fit an AR-10. I do not own one, but it was my understanding that they used milspec picatinny rails just like an AR-15. Someone correct me if I am wrong.
Link Posted: 6/17/2009 4:11:19 AM EST
Based on what it says here, I would assume the CL of the LT-104 is 1.58" above the rail. I am using the LT-104 (30mm rings, unlapped) on a LAR-8, which is an AR-10 variant.
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