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SPR A5M XP Rail: Nonstandard?

2308 Views 12 Replies 7 Participants Last post by  BlackNoSugar
Moved the scope from my AR-15 to the XP last night just to see what I would see. The scope is mounted to Burris extra high QD rings, so I expected it to be suboptimal, but I did not expect what I found. The rings lock up tight on the rail on the LMT MRP (receiver and rail all one piece) but they wiggle laterally on the XP. A lot. Adjusting the rings did not help.

These rings are too tall for the XP, and QD is not all that useful, so I'm not greatly concerned that this ring/scope combination does not work, but I am puzzled that the XP's rail does not seem to be standard.

Any thoughts? What rings are you using?
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I had been running my Knights Armament 30mm one piece mount with not problem till I picked up the rings I finally settled on for my A5M.
I now have TPS TRS #30580 low .925" rings TSR 30mm low 7075 Aluminum - TPS Products
They fit great, tighten up tight, and zero issues out of them, haven't run into a problem with the factory rail on the A5M.
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