well, I've started prepping for gopher season. They should pop their dirty little heads up on occasion starting this week here. In honour of that, I did the auto bolt release mod and added an extended mag release.
I drilled and tapped for 1/4UNF and epoxied a cut down .303 brit brass over it. Tap went in a little crooked (bad machinist apprentice, no coffee!), but it is still servicable and has the desired backwards cant. Seems to work smoothly and really does make swapping mags easier.

I drilled and tapped for 1/4UNF and epoxied a cut down .303 brit brass over it. Tap went in a little crooked (bad machinist apprentice, no coffee!), but it is still servicable and has the desired backwards cant. Seems to work smoothly and really does make swapping mags easier.