With k parts be careful because when I ordered k parts it took a lot of sanding and cussing plus a few purse hits lmaoAh got it. Good luck with the search! Check RTG before you go through HK Parts, they're good about having K parts and aren't as expensive. Gatewoodsupplyco is also pretty rad with good HK deals.
I got mine from HK parts brother. They ship pretty fast.Found stocks. Still in the market for a grip.
Tempting but I'd like to keep the HK handguardI have one of these if you are interested:
BT-211564-BL - B&T QD Foregrip Short Version
BT-211564-BL - BT-211564-BL - QD Foregrip Short Versionbt-parts.com