#10 USP-9 10 cap round magazine $30 (1 in stocked)
Brace has been used and there is a QD mount stuck to it.
#14 HK 416 Metal Mags LEO Sold
#15 New HK Mark 23 Magazine 12 rounds Sold
#16 HK 416 Bolt head $500 Date Code AI
No box but will come as is (no ejector and spring etc).
#20 Binary Trigger $550 shipped
No box and comes with a ejector. There is a cut to make room for an HK 21/23. I bought it off from a member here. I shot it and it runs fine.
Edits: Added more things
First one to post "I'll take #1" gets it first. PM does not count to prevent any confusion. Shipping is only $10 to save shipping buy multiple items from me. I take Zelle, venmo and PP (FnF and discrete). I have reference if needed