I am going at the start of next week to have my 2 new SBR receivers engraved by a local shop.

One of them is a Spikes lower and he said he could do the inconspicuous engraving in the trigger area as long as I remove the trigger guard first.

My other lower is a QC10 lower with the trigger guard built in. I am looking for ideas as to where to get the engraving done on that lower. Where did some of you guys place your engravings?

THSF did my QC10 lower in the trigger area. No removal of trigger guard necessary.

like this..

Left side above the trigger pins.

Tennessee Arms Co. did my engraving and the did a top notch job. I just wish I was smart enough to ask them to do it in the trigger area, as opposed to the side of the receiver above the hammer/trigger pins.

Mine is right behind the bolt release / directly above the trigger, but as high as it could go.  The exact opposite site of the QC10 markings.