I am now parting out the 870 stuff. The barrel is sold but the rest is available.
––- Mesa Tactical collapsible stock adapter with QD sling mount. Hogue grip and collapsible stock (no markings) included as well as mounting hardware. $160 shipped.
––- Choate +2 extension (parkerized) w/ spring, magazine clamp (has some cosmetic markings from the clamp). $35 shipped
––- Mako picatinny forend. I'll throw in the forend tool I made as well. It's aluminum tube that was turned and milled. This isn't a hacksaw / grinder job. If I had anodized it and made a slot for a torque wrench, it'd be semi professional. As it is, I just drilled a hole through the tube for a screwdriver or 3/8" extension to slide through and tighten by feel. $50 shipped.