MPA Comp Chassis - Sling / Mounts

Kind of curious about this as well. I have one of these chassis as well and want to shoot it with a sling. Glad to see 1.25 swivels there. Anyone try these with a tight sling with this setup for prone shooting?
 
Kind of curious about this as well. I have one of these chassis as well and want to shoot it with a sling. Glad to see 1.25 swivels there. Anyone try these with a tight sling with this setup for prone shooting?
That's exactly what I was wondering about was prone with a sling.
Kind of wondering how 100% reliable the QD is under big side pressures?
 
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