Streamlight TLR-7A on USP Compact with NO adapter?

Another adapter-less USP light mount

Laser Light Glock 17, Glock 19 Light Laser, Tr7 Pistol Light

MagRail - HK USP Compact - Magazine Floor Plate Rail Adapter - Mantis

Found out that I can mount a stream light without any rail adapter. Who does hk slide milling. I'm looking for a rmr cut asap : r/HecklerKoch

Heckler & Koch USP 45 (GG&G Rail Adapter & TLR7) : r/GunPorn

GG&G Inc. Fits Streamlight TLR-1 TLR-2 and L3 / Insight M3 and M6 Lightweight Mount Compact Size Type III Hard Coat Anodized Matte Black Finish Slim Line HK USP Cmp GGG-1134SP

Streamlight 69221 TLR-3 170-Lumen Lightweight, Compact Weapon Mounted Tactical Light with H&K USP Compact Clamp, Black : Sports & Outdoors

GG&G HK USP Flashlight Adapter-Compact - Impact Guns

SOLD - H&K USP-9 V1 Package *SPF

Streamlight 69246 TLR-4G Tactical Pistol Mount Flashlight 160 Lunen with Integrated Green Aiming Laser Designed and Solely for H&K USP Compact, Includes One CR2 Lithium Battery, Black : Sports & Outdoors