Roughed in. This is going to be the girly gun's upper. As low, light and rigid as it gets. Just enough room to float the LW barrel. Countless sighting options, easily integrated... even room under the barrel for an integrated laser.I can see cosmetic treatments from hyper light carbon fiber dust covers to Mannlicher type wood forearms.It's where these are headed.
Here's yours, mocked up. Lot of options with these.Messing around with ideas I can make from ABS sheet, laminated.
Just pulled off my first choke. It copies the dimensions of the LW, but as I cut a trumpet shape before shrinking the sleeve on, it tapers. It's not as abrupt.
That is the big question... and I'm not the guy to answer it. I'm not as steady as I once was, and that's not getting better with age. I need a test pilot for these... someone who is methodical and willing to document well. Someone who has the means to measure groups properly.... so...YGMIt slugs out beautifully... the slightest engagement in the bottom of the grooves... and good, distinct engraving.
120 with the breech's face milled square, and the full Teflon treatment.