Petzl Spirit Carabiner - Compact, Ultra-Lightweight Screw-Lock Carabiner for Rock and Ice Climbing - Screw-Lock
The lightest carabiner (and quickdraw): Edelrid 19G
Climbing Spring Hook Lightweight Locking Carabiner Keychain With Bottle Opener Auto Locking Carabiner Clips For Securing Pets - AliExpress
Amazon.com: RHINO Produxs 2PCS of 12kN (2697 lbs) Heavy Duty Lightweight Auto Locking Carabiner Clips, for Securing Pets, Outdoor, Camping, Hiking, Hammock, Gym, Twistlock Smart Locking Carabiners for Dog Leash : Sports
Black Diamond Miniwire Carabiner Light Grey | Alltricks.com
Amazon.com: BEIFENG Heavy Duty Lightweight Locking Carabiner Clips D Ring for Camping Hiking Outdoor Gym etc, Carabiner with Lock Small Carabiners for Dog Leash & Harness (Auto Locking Black-2Pcs) : Everything Else