I have just seen a note on short action cushions website warning this magazine doesn’t work well with any 3 lug action or manners mini chassis.
So is this is a centre feed magazine and not an AW magazine?
Gray Ops CNC BR/Dasher AW Magazine - Short Action Precision
Mag Features: 100% CNC machined Built in Spacer Kit Adjustable Steel Mag Catch 12 Round Capacity (except 10 Round Compliant Option) 10 Round and 12 Round Indicators Easy Disassembly for Cleaning Textured Base Sidewalls for Positive Gripping Caliber Compatibility: BR BRA Dasher Dimensions...www.shortactionprecision.com
The GrayOps mag is a double stack, double feed, just like an AW (which is why they show it installed in an AT-X). The note about it not working well in 3-lug actions is likely referring to 700 clones like the Terminus mentioned earlier in this thread, where there isn't a lug protruding downwards at 6 o'clock when the bolt is unlocked.
A good friend has been running a prototype GrayOps mag in his CDG for a while now (long before they were even announced publicly) and it's been 100%, but then the CDG was actually designed by Ted to work with AW pattern mags from the start.